./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label52.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label52.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 673e4a4bf325c025d58fd334f1e832326bf41b68123ee166ef18eb1ee4097cb0 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:42:01,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:42:01,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:42:01,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:42:01,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:42:01,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:42:01,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:42:01,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:42:01,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:42:01,586 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:42:01,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:42:01,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:42:01,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:42:01,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:42:01,589 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:42:01,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:42:01,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:42:01,590 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:42:01,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:42:01,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:42:01,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:42:01,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:42:01,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:42:01,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:42:01,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:42:01,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:42:01,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:42:01,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:42:01,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:42:01,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:42:01,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:42:01,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:42:01,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:42:01,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:42:01,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:42:01,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:42:01,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:42:01,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:42:01,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:42:01,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:42:01,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:42:01,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:42:01,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 673e4a4bf325c025d58fd334f1e832326bf41b68123ee166ef18eb1ee4097cb0 [2024-11-08 11:42:01,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:42:01,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:42:01,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:42:01,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:42:01,811 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:42:01,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label52.c [2024-11-08 11:42:03,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:42:03,332 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:42:03,333 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label52.c [2024-11-08 11:42:03,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a068441b5/e05afc5f8ec04aa590511682e5ff0c55/FLAG08e8a5fad [2024-11-08 11:42:03,367 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a068441b5/e05afc5f8ec04aa590511682e5ff0c55 [2024-11-08 11:42:03,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:42:03,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:42:03,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:42:03,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:42:03,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:42:03,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:42:03" (1/1) ... [2024-11-08 11:42:03,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1effa383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:03, skipping insertion in model container [2024-11-08 11:42:03,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:42:03" (1/1) ... [2024-11-08 11:42:03,440 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:42:03,595 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_label52.c[1111,1124] [2024-11-08 11:42:03,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:42:04,002 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:42:04,016 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_label52.c[1111,1124] [2024-11-08 11:42:04,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:42:04,311 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:42:04,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04 WrapperNode [2024-11-08 11:42:04,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:42:04,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:42:04,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:42:04,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:42:04,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,513 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-11-08 11:42:04,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:42:04,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:42:04,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:42:04,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:42:04,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,713 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 11:42:04,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:42:04,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:42:04,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:42:04,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:42:04,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (1/1) ... [2024-11-08 11:42:04,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:42:04,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:42:04,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 11:42:04,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 11:42:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:42:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:42:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:42:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:42:04,979 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:42:04,981 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:42:07,350 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-08 11:42:07,350 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:42:07,388 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:42:07,390 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:42:07,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:42:07 BoogieIcfgContainer [2024-11-08 11:42:07,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:42:07,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:42:07,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:42:07,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:42:07,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:42:03" (1/3) ... [2024-11-08 11:42:07,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4885a5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:42:07, skipping insertion in model container [2024-11-08 11:42:07,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:42:04" (2/3) ... [2024-11-08 11:42:07,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4885a5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:42:07, skipping insertion in model container [2024-11-08 11:42:07,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:42:07" (3/3) ... [2024-11-08 11:42:07,397 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label52.c [2024-11-08 11:42:07,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:42:07,409 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:42:07,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:42:07,473 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;@385d2986, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:42:07,473 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:42:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 11:42:07,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:07,481 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 11:42:07,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:07,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:07,485 INFO L85 PathProgramCache]: Analyzing trace with hash 889694410, now seen corresponding path program 1 times [2024-11-08 11:42:07,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:07,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19212877] [2024-11-08 11:42:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:07,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:07,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:07,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:07,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19212877] [2024-11-08 11:42:07,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19212877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:07,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:07,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:42:07,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231006807] [2024-11-08 11:42:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:07,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:07,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:07,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:07,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:07,654 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 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:09,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:09,613 INFO L93 Difference]: Finished difference Result 1644 states and 3029 transitions. [2024-11-08 11:42:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:09,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2024-11-08 11:42:09,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:09,632 INFO L225 Difference]: With dead ends: 1644 [2024-11-08 11:42:09,632 INFO L226 Difference]: Without dead ends: 977 [2024-11-08 11:42:09,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:09,638 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 482 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:09,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 503 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:42:09,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-08 11:42:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 971. [2024-11-08 11:42:09,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5536082474226804) internal successors, (1507), 970 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1507 transitions. [2024-11-08 11:42:09,711 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1507 transitions. Word has length 6 [2024-11-08 11:42:09,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:09,711 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1507 transitions. [2024-11-08 11:42:09,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:09,711 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1507 transitions. [2024-11-08 11:42:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 11:42:09,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:09,713 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 11:42:09,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:42:09,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:09,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1474699842, now seen corresponding path program 1 times [2024-11-08 11:42:09,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:09,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411369293] [2024-11-08 11:42:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:09,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:09,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411369293] [2024-11-08 11:42:09,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411369293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:09,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:09,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:42:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879120864] [2024-11-08 11:42:09,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:09,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:09,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:09,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:09,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:09,939 INFO L87 Difference]: Start difference. First operand 971 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:11,660 INFO L93 Difference]: Finished difference Result 2815 states and 4382 transitions. [2024-11-08 11:42:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:11,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-08 11:42:11,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:11,666 INFO L225 Difference]: With dead ends: 2815 [2024-11-08 11:42:11,666 INFO L226 Difference]: Without dead ends: 1846 [2024-11-08 11:42:11,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:11,668 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:11,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 580 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:42:11,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-08 11:42:11,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1841. [2024-11-08 11:42:11,691 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) [2024-11-08 11:42:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2485 transitions. [2024-11-08 11:42:11,695 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2485 transitions. Word has length 73 [2024-11-08 11:42:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:11,695 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2485 transitions. [2024-11-08 11:42:11,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:11,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2485 transitions. [2024-11-08 11:42:11,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 11:42:11,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:11,697 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 11:42:11,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:42:11,697 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:11,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:11,698 INFO L85 PathProgramCache]: Analyzing trace with hash 947435030, now seen corresponding path program 1 times [2024-11-08 11:42:11,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:11,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084689945] [2024-11-08 11:42:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:11,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:11,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084689945] [2024-11-08 11:42:11,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084689945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:11,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:11,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:11,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632286294] [2024-11-08 11:42:11,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:11,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:11,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:11,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:11,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:11,812 INFO L87 Difference]: Start difference. First operand 1841 states and 2485 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:13,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:13,365 INFO L93 Difference]: Finished difference Result 4552 states and 6285 transitions. [2024-11-08 11:42:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:13,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-08 11:42:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:13,372 INFO L225 Difference]: With dead ends: 4552 [2024-11-08 11:42:13,373 INFO L226 Difference]: Without dead ends: 2713 [2024-11-08 11:42:13,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:13,375 INFO L432 NwaCegarLoop]: 818 mSDtfsCounter, 501 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:13,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 886 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:42:13,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2024-11-08 11:42:13,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2711. [2024-11-08 11:42:13,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 1.3007380073800738) internal successors, (3525), 2710 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3525 transitions. [2024-11-08 11:42:13,403 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3525 transitions. Word has length 76 [2024-11-08 11:42:13,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:13,404 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3525 transitions. [2024-11-08 11:42:13,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:13,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3525 transitions. [2024-11-08 11:42:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 11:42:13,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:13,409 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:13,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:42:13,409 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:13,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:13,411 INFO L85 PathProgramCache]: Analyzing trace with hash 264646321, now seen corresponding path program 1 times [2024-11-08 11:42:13,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:13,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552179702] [2024-11-08 11:42:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-08 11:42:13,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552179702] [2024-11-08 11:42:13,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552179702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:13,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:13,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:42:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014528161] [2024-11-08 11:42:13,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:13,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:13,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:13,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:13,578 INFO L87 Difference]: Start difference. First operand 2711 states and 3525 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:14,916 INFO L93 Difference]: Finished difference Result 7984 states and 10364 transitions. [2024-11-08 11:42:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:14,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 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 145 [2024-11-08 11:42:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:14,926 INFO L225 Difference]: With dead ends: 7984 [2024-11-08 11:42:14,927 INFO L226 Difference]: Without dead ends: 4421 [2024-11-08 11:42:14,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:14,930 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:14,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:42:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2024-11-08 11:42:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 3566. [2024-11-08 11:42:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 3565 states have (on average 1.1778401122019635) internal successors, (4199), 3565 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4199 transitions. [2024-11-08 11:42:14,972 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4199 transitions. Word has length 145 [2024-11-08 11:42:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:14,972 INFO L471 AbstractCegarLoop]: Abstraction has 3566 states and 4199 transitions. [2024-11-08 11:42:14,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4199 transitions. [2024-11-08 11:42:14,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 11:42:14,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:14,974 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:14,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:42:14,975 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:14,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:14,975 INFO L85 PathProgramCache]: Analyzing trace with hash 779228845, now seen corresponding path program 1 times [2024-11-08 11:42:14,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:14,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834455049] [2024-11-08 11:42:14,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:14,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:15,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:15,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834455049] [2024-11-08 11:42:15,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834455049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:15,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:15,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:15,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42067234] [2024-11-08 11:42:15,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:15,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:15,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:15,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:15,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:15,179 INFO L87 Difference]: Start difference. First operand 3566 states and 4199 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:16,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:16,432 INFO L93 Difference]: Finished difference Result 9263 states and 11078 transitions. [2024-11-08 11:42:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:16,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2024-11-08 11:42:16,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:16,446 INFO L225 Difference]: With dead ends: 9263 [2024-11-08 11:42:16,446 INFO L226 Difference]: Without dead ends: 5699 [2024-11-08 11:42:16,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:16,450 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:16,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 784 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:16,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2024-11-08 11:42:16,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 5699. [2024-11-08 11:42:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5698 states have (on average 1.1597051597051597) internal successors, (6608), 5698 states have internal predecessors, (6608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:16,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 6608 transitions. [2024-11-08 11:42:16,515 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 6608 transitions. Word has length 158 [2024-11-08 11:42:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:16,517 INFO L471 AbstractCegarLoop]: Abstraction has 5699 states and 6608 transitions. [2024-11-08 11:42:16,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 6608 transitions. [2024-11-08 11:42:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 11:42:16,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:16,521 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:16,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:42:16,521 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:16,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:16,522 INFO L85 PathProgramCache]: Analyzing trace with hash -897468184, now seen corresponding path program 1 times [2024-11-08 11:42:16,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:16,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640472571] [2024-11-08 11:42:16,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:16,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:16,756 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:16,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:16,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640472571] [2024-11-08 11:42:16,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640472571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:16,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716570610] [2024-11-08 11:42:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:16,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:42:16,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:42:16,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:42:16,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:42:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:16,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:42:16,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:42:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:17,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:42:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:17,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716570610] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:17,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:42:17,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-08 11:42:17,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658904340] [2024-11-08 11:42:17,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:17,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:17,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:17,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:17,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:42:17,278 INFO L87 Difference]: Start difference. First operand 5699 states and 6608 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:19,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:19,561 INFO L93 Difference]: Finished difference Result 16961 states and 19953 transitions. [2024-11-08 11:42:19,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:19,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-08 11:42:19,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:19,585 INFO L225 Difference]: With dead ends: 16961 [2024-11-08 11:42:19,586 INFO L226 Difference]: Without dead ends: 10384 [2024-11-08 11:42:19,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:42:19,593 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 1048 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 1043 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1043 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:19,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 152 Invalid, 3226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1043 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 11:42:19,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10384 states. [2024-11-08 11:42:19,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10384 to 10379. [2024-11-08 11:42:19,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 1.1553285796878012) internal successors, (11990), 10378 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 11990 transitions. [2024-11-08 11:42:19,777 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 11990 transitions. Word has length 160 [2024-11-08 11:42:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:19,777 INFO L471 AbstractCegarLoop]: Abstraction has 10379 states and 11990 transitions. [2024-11-08 11:42:19,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 11990 transitions. [2024-11-08 11:42:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-08 11:42:19,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:19,780 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:19,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 11:42:19,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 11:42:19,982 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:19,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:19,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1619681626, now seen corresponding path program 1 times [2024-11-08 11:42:19,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:19,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939678888] [2024-11-08 11:42:19,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:19,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:20,296 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 11 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:20,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939678888] [2024-11-08 11:42:20,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939678888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097150920] [2024-11-08 11:42:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:20,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:42:20,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:42:20,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:42:20,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:42:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:20,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:42:20,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:42:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 148 proven. 73 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 11:42:20,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:42:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 11:42:20,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097150920] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:20,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:42:20,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 6 [2024-11-08 11:42:20,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839864193] [2024-11-08 11:42:20,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:20,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:20,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:20,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:20,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:42:20,730 INFO L87 Difference]: Start difference. First operand 10379 states and 11990 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:22,702 INFO L93 Difference]: Finished difference Result 28865 states and 33388 transitions. [2024-11-08 11:42:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:22,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 234 [2024-11-08 11:42:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:22,738 INFO L225 Difference]: With dead ends: 28865 [2024-11-08 11:42:22,739 INFO L226 Difference]: Without dead ends: 18488 [2024-11-08 11:42:22,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:42:22,751 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 839 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:22,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 186 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:42:22,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18488 states. [2024-11-08 11:42:22,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18488 to 18482. [2024-11-08 11:42:22,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18482 states, 18481 states have (on average 1.1429035225366593) internal successors, (21122), 18481 states have internal predecessors, (21122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:23,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 21122 transitions. [2024-11-08 11:42:23,009 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 21122 transitions. Word has length 234 [2024-11-08 11:42:23,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:23,010 INFO L471 AbstractCegarLoop]: Abstraction has 18482 states and 21122 transitions. [2024-11-08 11:42:23,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 21122 transitions. [2024-11-08 11:42:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-08 11:42:23,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:23,015 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:23,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 11:42:23,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 11:42:23,220 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:23,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:23,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1408190996, now seen corresponding path program 1 times [2024-11-08 11:42:23,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:23,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429886217] [2024-11-08 11:42:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:23,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-08 11:42:23,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:23,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429886217] [2024-11-08 11:42:23,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429886217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:23,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:23,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:23,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214180483] [2024-11-08 11:42:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:23,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:23,588 INFO L87 Difference]: Start difference. First operand 18482 states and 21122 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:25,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:25,052 INFO L93 Difference]: Finished difference Result 50636 states and 57339 transitions. [2024-11-08 11:42:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:25,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 339 [2024-11-08 11:42:25,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:25,091 INFO L225 Difference]: With dead ends: 50636 [2024-11-08 11:42:25,092 INFO L226 Difference]: Without dead ends: 32156 [2024-11-08 11:42:25,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:25,107 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 426 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:25,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 669 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:42:25,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32156 states. [2024-11-08 11:42:25,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32156 to 29570. [2024-11-08 11:42:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29570 states, 29569 states have (on average 1.131117048260002) internal successors, (33446), 29569 states have internal predecessors, (33446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:25,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29570 states to 29570 states and 33446 transitions. [2024-11-08 11:42:25,388 INFO L78 Accepts]: Start accepts. Automaton has 29570 states and 33446 transitions. Word has length 339 [2024-11-08 11:42:25,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:25,389 INFO L471 AbstractCegarLoop]: Abstraction has 29570 states and 33446 transitions. [2024-11-08 11:42:25,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 29570 states and 33446 transitions. [2024-11-08 11:42:25,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-08 11:42:25,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:25,393 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-08 11:42:25,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:42:25,393 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:25,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:25,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1854618359, now seen corresponding path program 1 times [2024-11-08 11:42:25,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:25,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442162207] [2024-11-08 11:42:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:25,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:25,665 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-08 11:42:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442162207] [2024-11-08 11:42:25,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442162207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:25,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:25,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:25,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880502855] [2024-11-08 11:42:25,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:25,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:25,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:25,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:25,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:25,668 INFO L87 Difference]: Start difference. First operand 29570 states and 33446 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:26,988 INFO L93 Difference]: Finished difference Result 68519 states and 77907 transitions. [2024-11-08 11:42:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:26,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2024-11-08 11:42:26,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:27,032 INFO L225 Difference]: With dead ends: 68519 [2024-11-08 11:42:27,032 INFO L226 Difference]: Without dead ends: 38950 [2024-11-08 11:42:27,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:27,056 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 436 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:27,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 641 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38950 states. [2024-11-08 11:42:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38950 to 36818. [2024-11-08 11:42:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36818 states, 36817 states have (on average 1.1341228236955754) internal successors, (41755), 36817 states have internal predecessors, (41755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36818 states to 36818 states and 41755 transitions. [2024-11-08 11:42:27,432 INFO L78 Accepts]: Start accepts. Automaton has 36818 states and 41755 transitions. Word has length 340 [2024-11-08 11:42:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:27,433 INFO L471 AbstractCegarLoop]: Abstraction has 36818 states and 41755 transitions. [2024-11-08 11:42:27,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 36818 states and 41755 transitions. [2024-11-08 11:42:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-08 11:42:27,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:27,438 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:27,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:42:27,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:27,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1750024832, now seen corresponding path program 1 times [2024-11-08 11:42:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:27,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811363564] [2024-11-08 11:42:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:27,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 11:42:27,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:27,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811363564] [2024-11-08 11:42:27,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811363564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:27,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:27,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:42:27,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480887729] [2024-11-08 11:42:27,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:27,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:27,865 INFO L87 Difference]: Start difference. First operand 36818 states and 41755 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:29,929 INFO L93 Difference]: Finished difference Result 99668 states and 112882 transitions. [2024-11-08 11:42:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:29,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 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 344 [2024-11-08 11:42:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:29,998 INFO L225 Difference]: With dead ends: 99668 [2024-11-08 11:42:30,002 INFO L226 Difference]: Without dead ends: 62852 [2024-11-08 11:42:30,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:30,050 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 827 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:30,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 192 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 11:42:30,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62852 states. [2024-11-08 11:42:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62852 to 57736. [2024-11-08 11:42:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57736 states, 57735 states have (on average 1.1359660517883432) internal successors, (65585), 57735 states have internal predecessors, (65585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:30,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57736 states to 57736 states and 65585 transitions. [2024-11-08 11:42:30,909 INFO L78 Accepts]: Start accepts. Automaton has 57736 states and 65585 transitions. Word has length 344 [2024-11-08 11:42:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:30,910 INFO L471 AbstractCegarLoop]: Abstraction has 57736 states and 65585 transitions. [2024-11-08 11:42:30,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 57736 states and 65585 transitions. [2024-11-08 11:42:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-08 11:42:30,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:30,915 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:30,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:42:30,915 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:30,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:30,916 INFO L85 PathProgramCache]: Analyzing trace with hash 832714336, now seen corresponding path program 1 times [2024-11-08 11:42:30,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:30,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528022514] [2024-11-08 11:42:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:30,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:42:31,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:31,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528022514] [2024-11-08 11:42:31,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528022514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:31,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:31,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:31,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670366406] [2024-11-08 11:42:31,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:31,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:31,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:31,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:31,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:31,133 INFO L87 Difference]: Start difference. First operand 57736 states and 65585 transitions. Second operand has 4 states, 4 states have (on average 86.25) 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) [2024-11-08 11:42:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:33,475 INFO L93 Difference]: Finished difference Result 138523 states and 157087 transitions. [2024-11-08 11:42:33,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:33,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.25) 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 345 [2024-11-08 11:42:33,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:33,559 INFO L225 Difference]: With dead ends: 138523 [2024-11-08 11:42:33,559 INFO L226 Difference]: Without dead ends: 79087 [2024-11-08 11:42:33,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:33,591 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 567 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:33,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 401 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:42:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79087 states. [2024-11-08 11:42:34,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79087 to 77772. [2024-11-08 11:42:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77772 states, 77771 states have (on average 1.1287626493165832) internal successors, (87785), 77771 states have internal predecessors, (87785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77772 states to 77772 states and 87785 transitions. [2024-11-08 11:42:34,474 INFO L78 Accepts]: Start accepts. Automaton has 77772 states and 87785 transitions. Word has length 345 [2024-11-08 11:42:34,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:34,474 INFO L471 AbstractCegarLoop]: Abstraction has 77772 states and 87785 transitions. [2024-11-08 11:42:34,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) 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) [2024-11-08 11:42:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 77772 states and 87785 transitions. [2024-11-08 11:42:34,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-08 11:42:34,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:34,477 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 11:42:34,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:42:34,478 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:34,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash -733442298, now seen corresponding path program 1 times [2024-11-08 11:42:34,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:34,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040169635] [2024-11-08 11:42:34,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:34,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 223 proven. 4 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-08 11:42:35,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:35,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040169635] [2024-11-08 11:42:35,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040169635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:35,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510244841] [2024-11-08 11:42:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:35,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:42:35,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:42:35,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:42:35,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 11:42:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:35,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:42:35,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:42:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 223 proven. 4 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-08 11:42:35,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:42:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2024-11-08 11:42:35,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510244841] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:35,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:42:35,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-08 11:42:35,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447592684] [2024-11-08 11:42:35,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:35,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:35,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:35,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:35,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:42:35,713 INFO L87 Difference]: Start difference. First operand 77772 states and 87785 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:37,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:37,223 INFO L93 Difference]: Finished difference Result 157649 states and 177844 transitions. [2024-11-08 11:42:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:37,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 359 [2024-11-08 11:42:37,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:37,304 INFO L225 Difference]: With dead ends: 157649 [2024-11-08 11:42:37,304 INFO L226 Difference]: Without dead ends: 79872 [2024-11-08 11:42:37,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 715 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:42:37,347 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 485 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:37,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 709 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:37,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79872 states. [2024-11-08 11:42:38,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79872 to 79406. [2024-11-08 11:42:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79406 states, 79405 states have (on average 1.1147031043385178) internal successors, (88513), 79405 states have internal predecessors, (88513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:38,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79406 states to 79406 states and 88513 transitions. [2024-11-08 11:42:38,444 INFO L78 Accepts]: Start accepts. Automaton has 79406 states and 88513 transitions. Word has length 359 [2024-11-08 11:42:38,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:38,445 INFO L471 AbstractCegarLoop]: Abstraction has 79406 states and 88513 transitions. [2024-11-08 11:42:38,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:38,445 INFO L276 IsEmpty]: Start isEmpty. Operand 79406 states and 88513 transitions. [2024-11-08 11:42:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-08 11:42:38,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:38,468 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:38,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 11:42:38,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:42:38,669 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:38,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:38,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1724265697, now seen corresponding path program 1 times [2024-11-08 11:42:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:38,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014250280] [2024-11-08 11:42:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:38,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-08 11:42:39,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:39,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014250280] [2024-11-08 11:42:39,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014250280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:39,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:39,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:39,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517430427] [2024-11-08 11:42:39,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:39,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:39,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:39,245 INFO L87 Difference]: Start difference. First operand 79406 states and 88513 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:40,783 INFO L93 Difference]: Finished difference Result 169039 states and 187933 transitions. [2024-11-08 11:42:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:40,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 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 572 [2024-11-08 11:42:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:40,875 INFO L225 Difference]: With dead ends: 169039 [2024-11-08 11:42:40,875 INFO L226 Difference]: Without dead ends: 88360 [2024-11-08 11:42:40,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:40,899 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 444 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:40,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 814 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:42:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88360 states. [2024-11-08 11:42:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88360 to 87487. [2024-11-08 11:42:42,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87487 states, 87486 states have (on average 1.1064170267242759) internal successors, (96796), 87486 states have internal predecessors, (96796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87487 states to 87487 states and 96796 transitions. [2024-11-08 11:42:42,084 INFO L78 Accepts]: Start accepts. Automaton has 87487 states and 96796 transitions. Word has length 572 [2024-11-08 11:42:42,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:42,085 INFO L471 AbstractCegarLoop]: Abstraction has 87487 states and 96796 transitions. [2024-11-08 11:42:42,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 87487 states and 96796 transitions. [2024-11-08 11:42:42,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2024-11-08 11:42:42,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:42,101 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:42:42,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:42:42,101 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:42,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:42,101 INFO L85 PathProgramCache]: Analyzing trace with hash -684506661, now seen corresponding path program 1 times [2024-11-08 11:42:42,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:42,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615442125] [2024-11-08 11:42:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:42,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-08 11:42:42,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:42,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615442125] [2024-11-08 11:42:42,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615442125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:42,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:42,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:42,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440713752] [2024-11-08 11:42:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:42,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:42,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:42,282 INFO L87 Difference]: Start difference. First operand 87487 states and 96796 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:44,034 INFO L93 Difference]: Finished difference Result 183052 states and 202757 transitions. [2024-11-08 11:42:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:44,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 583 [2024-11-08 11:42:44,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:44,131 INFO L225 Difference]: With dead ends: 183052 [2024-11-08 11:42:44,131 INFO L226 Difference]: Without dead ends: 95992 [2024-11-08 11:42:44,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:44,145 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 497 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:44,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 682 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95992 states. [2024-11-08 11:42:45,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95992 to 95563. [2024-11-08 11:42:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95563 states, 95562 states have (on average 1.1002804462024653) internal successors, (105145), 95562 states have internal predecessors, (105145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95563 states to 95563 states and 105145 transitions. [2024-11-08 11:42:45,378 INFO L78 Accepts]: Start accepts. Automaton has 95563 states and 105145 transitions. Word has length 583 [2024-11-08 11:42:45,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:45,379 INFO L471 AbstractCegarLoop]: Abstraction has 95563 states and 105145 transitions. [2024-11-08 11:42:45,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 95563 states and 105145 transitions. [2024-11-08 11:42:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-11-08 11:42:45,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:45,623 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:45,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:42:45,627 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:45,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:45,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1739826372, now seen corresponding path program 1 times [2024-11-08 11:42:45,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:45,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374045836] [2024-11-08 11:42:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:45,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2024-11-08 11:42:46,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:46,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374045836] [2024-11-08 11:42:46,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374045836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:46,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:46,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:46,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778159664] [2024-11-08 11:42:46,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:46,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:46,359 INFO L87 Difference]: Start difference. First operand 95563 states and 105145 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:47,535 INFO L93 Difference]: Finished difference Result 190696 states and 209858 transitions. [2024-11-08 11:42:47,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:47,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 597 [2024-11-08 11:42:47,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:47,766 INFO L225 Difference]: With dead ends: 190696 [2024-11-08 11:42:47,766 INFO L226 Difference]: Without dead ends: 95560 [2024-11-08 11:42:47,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:47,791 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 625 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:47,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 549 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 11:42:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95560 states. [2024-11-08 11:42:48,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95560 to 95133. [2024-11-08 11:42:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95133 states, 95132 states have (on average 1.1003027372492957) internal successors, (104674), 95132 states have internal predecessors, (104674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:49,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95133 states to 95133 states and 104674 transitions. [2024-11-08 11:42:49,029 INFO L78 Accepts]: Start accepts. Automaton has 95133 states and 104674 transitions. Word has length 597 [2024-11-08 11:42:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:49,030 INFO L471 AbstractCegarLoop]: Abstraction has 95133 states and 104674 transitions. [2024-11-08 11:42:49,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 95133 states and 104674 transitions. [2024-11-08 11:42:49,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-11-08 11:42:49,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:49,054 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:49,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:42:49,054 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:49,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash -912761049, now seen corresponding path program 1 times [2024-11-08 11:42:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743905552] [2024-11-08 11:42:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:49,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:42:49,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:49,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743905552] [2024-11-08 11:42:49,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743905552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:49,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:49,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:49,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716388036] [2024-11-08 11:42:49,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:49,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:49,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:49,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:49,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:49,884 INFO L87 Difference]: Start difference. First operand 95133 states and 104674 transitions. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:51,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:51,442 INFO L93 Difference]: Finished difference Result 201342 states and 221866 transitions. [2024-11-08 11:42:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:51,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 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 602 [2024-11-08 11:42:51,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:51,575 INFO L225 Difference]: With dead ends: 201342 [2024-11-08 11:42:51,575 INFO L226 Difference]: Without dead ends: 106636 [2024-11-08 11:42:51,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:51,635 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 104 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:51,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 762 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:42:51,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106636 states. [2024-11-08 11:42:52,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106636 to 102800. [2024-11-08 11:42:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102800 states, 102799 states have (on average 1.0987071858675668) internal successors, (112946), 102799 states have internal predecessors, (112946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:53,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102800 states to 102800 states and 112946 transitions. [2024-11-08 11:42:53,020 INFO L78 Accepts]: Start accepts. Automaton has 102800 states and 112946 transitions. Word has length 602 [2024-11-08 11:42:53,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:53,020 INFO L471 AbstractCegarLoop]: Abstraction has 102800 states and 112946 transitions. [2024-11-08 11:42:53,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:53,020 INFO L276 IsEmpty]: Start isEmpty. Operand 102800 states and 112946 transitions. [2024-11-08 11:42:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2024-11-08 11:42:53,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:53,042 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:53,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:42:53,043 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:53,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:53,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1639907003, now seen corresponding path program 1 times [2024-11-08 11:42:53,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:53,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101712279] [2024-11-08 11:42:53,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:53,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:42:53,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:53,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101712279] [2024-11-08 11:42:53,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101712279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:53,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:53,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:53,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417977334] [2024-11-08 11:42:53,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:53,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:53,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:53,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:53,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:53,770 INFO L87 Difference]: Start difference. First operand 102800 states and 112946 transitions. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:55,276 INFO L93 Difference]: Finished difference Result 214543 states and 235819 transitions. [2024-11-08 11:42:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:55,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 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 630 [2024-11-08 11:42:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:55,408 INFO L225 Difference]: With dead ends: 214543 [2024-11-08 11:42:55,408 INFO L226 Difference]: Without dead ends: 112170 [2024-11-08 11:42:55,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:55,472 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 118 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:55,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 336 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:42:55,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112170 states. [2024-11-08 11:42:56,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112170 to 109609. [2024-11-08 11:42:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109609 states, 109608 states have (on average 1.0971553171301365) internal successors, (120257), 109608 states have internal predecessors, (120257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:56,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109609 states to 109609 states and 120257 transitions. [2024-11-08 11:42:56,972 INFO L78 Accepts]: Start accepts. Automaton has 109609 states and 120257 transitions. Word has length 630 [2024-11-08 11:42:56,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:56,972 INFO L471 AbstractCegarLoop]: Abstraction has 109609 states and 120257 transitions. [2024-11-08 11:42:56,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:56,972 INFO L276 IsEmpty]: Start isEmpty. Operand 109609 states and 120257 transitions. [2024-11-08 11:42:56,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2024-11-08 11:42:56,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:56,996 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:56,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 11:42:56,996 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:56,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:56,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1837793197, now seen corresponding path program 1 times [2024-11-08 11:42:56,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:56,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250578654] [2024-11-08 11:42:56,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:56,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2024-11-08 11:42:57,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:57,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250578654] [2024-11-08 11:42:57,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250578654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:57,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:57,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:57,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370843025] [2024-11-08 11:42:57,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:57,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:57,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:57,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:57,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:57,224 INFO L87 Difference]: Start difference. First operand 109609 states and 120257 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:59,053 INFO L93 Difference]: Finished difference Result 221790 states and 243237 transitions. [2024-11-08 11:42:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:59,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 689 [2024-11-08 11:42:59,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:59,184 INFO L225 Difference]: With dead ends: 221790 [2024-11-08 11:42:59,184 INFO L226 Difference]: Without dead ends: 111327 [2024-11-08 11:42:59,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:59,256 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 443 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:59,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 776 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:42:59,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111327 states. [2024-11-08 11:43:00,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111327 to 106624. [2024-11-08 11:43:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106624 states, 106623 states have (on average 1.097671234161485) internal successors, (117037), 106623 states have internal predecessors, (117037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106624 states to 106624 states and 117037 transitions. [2024-11-08 11:43:00,975 INFO L78 Accepts]: Start accepts. Automaton has 106624 states and 117037 transitions. Word has length 689 [2024-11-08 11:43:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:43:00,975 INFO L471 AbstractCegarLoop]: Abstraction has 106624 states and 117037 transitions. [2024-11-08 11:43:00,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 106624 states and 117037 transitions. [2024-11-08 11:43:00,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-08 11:43:00,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:43:00,995 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:43:00,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:43:00,996 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:43:00,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:43:00,996 INFO L85 PathProgramCache]: Analyzing trace with hash 963543129, now seen corresponding path program 1 times [2024-11-08 11:43:00,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:43:00,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224670456] [2024-11-08 11:43:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:43:00,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:43:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:43:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-08 11:43:01,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:43:01,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224670456] [2024-11-08 11:43:01,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224670456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:43:01,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:43:01,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:43:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217695646] [2024-11-08 11:43:01,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:43:01,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:43:01,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:43:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:43:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:43:01,380 INFO L87 Difference]: Start difference. First operand 106624 states and 117037 transitions. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:43:03,031 INFO L93 Difference]: Finished difference Result 224330 states and 246270 transitions. [2024-11-08 11:43:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:43:03,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 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 693 [2024-11-08 11:43:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:43:03,155 INFO L225 Difference]: With dead ends: 224330 [2024-11-08 11:43:03,155 INFO L226 Difference]: Without dead ends: 117705 [2024-11-08 11:43:03,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:43:03,219 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 126 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:43:03,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 300 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:43:03,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117705 states. [2024-11-08 11:43:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117705 to 106200. [2024-11-08 11:43:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106200 states, 106199 states have (on average 1.0902550871477132) internal successors, (115784), 106199 states have internal predecessors, (115784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106200 states to 106200 states and 115784 transitions. [2024-11-08 11:43:05,241 INFO L78 Accepts]: Start accepts. Automaton has 106200 states and 115784 transitions. Word has length 693 [2024-11-08 11:43:05,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:43:05,241 INFO L471 AbstractCegarLoop]: Abstraction has 106200 states and 115784 transitions. [2024-11-08 11:43:05,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 106200 states and 115784 transitions. [2024-11-08 11:43:05,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2024-11-08 11:43:05,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:43:05,269 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:43:05,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 11:43:05,269 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:43:05,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:43:05,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1157706383, now seen corresponding path program 1 times [2024-11-08 11:43:05,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:43:05,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351544428] [2024-11-08 11:43:05,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:43:05,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:43:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:43:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-08 11:43:05,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:43:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351544428] [2024-11-08 11:43:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351544428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:43:05,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:43:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:43:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936564093] [2024-11-08 11:43:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:43:05,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:43:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:43:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:43:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:43:05,619 INFO L87 Difference]: Start difference. First operand 106200 states and 115784 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:07,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:43:07,904 INFO L93 Difference]: Finished difference Result 237095 states and 258601 transitions. [2024-11-08 11:43:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:43:07,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 745 [2024-11-08 11:43:07,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:43:08,057 INFO L225 Difference]: With dead ends: 237095 [2024-11-08 11:43:08,057 INFO L226 Difference]: Without dead ends: 131322 [2024-11-08 11:43:08,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:43:08,127 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 588 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:43:08,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 286 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:43:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131322 states. [2024-11-08 11:43:09,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131322 to 118944. [2024-11-08 11:43:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118944 states, 118943 states have (on average 1.08045870711181) internal successors, (128513), 118943 states have internal predecessors, (128513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118944 states to 118944 states and 128513 transitions. [2024-11-08 11:43:09,925 INFO L78 Accepts]: Start accepts. Automaton has 118944 states and 128513 transitions. Word has length 745 [2024-11-08 11:43:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:43:09,925 INFO L471 AbstractCegarLoop]: Abstraction has 118944 states and 128513 transitions. [2024-11-08 11:43:09,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:43:09,926 INFO L276 IsEmpty]: Start isEmpty. Operand 118944 states and 128513 transitions. [2024-11-08 11:43:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2024-11-08 11:43:09,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:43:09,959 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:43:09,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 11:43:09,960 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:43:09,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:43:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1360092788, now seen corresponding path program 1 times [2024-11-08 11:43:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:43:09,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947379596] [2024-11-08 11:43:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:43:09,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:43:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:43:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-08 11:43:10,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:43:10,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947379596] [2024-11-08 11:43:10,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947379596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:43:10,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:43:10,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:43:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434517794] [2024-11-08 11:43:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:43:10,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:43:10,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:43:10,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:43:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:43:10,502 INFO L87 Difference]: Start difference. First operand 118944 states and 128513 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)