./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.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 e7bf678f67bc088f549a4abb07f450d970cef489f8318e3fb7c3771679b9e87b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:49:18,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:49:18,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:49:18,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:49:18,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:49:18,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:49:18,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:49:18,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:49:18,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:49:18,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:49:18,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:49:18,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:49:18,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:49:18,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:49:18,737 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:49:18,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:49:18,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:49:18,738 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:49:18,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:49:18,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:49:18,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:49:18,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:49:18,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:49:18,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:49:18,743 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:49:18,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:49:18,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:49:18,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:49:18,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:49:18,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:49:18,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:49:18,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:49:18,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:49:18,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:49:18,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:49:18,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:49:18,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:49:18,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:49:18,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:49:18,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:49:18,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:49:18,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:49:18,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7bf678f67bc088f549a4abb07f450d970cef489f8318e3fb7c3771679b9e87b [2024-10-24 01:49:19,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:49:19,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:49:19,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:49:19,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:49:19,041 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:49:19,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:49:20,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:49:20,778 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:49:20,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:49:20,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa1fbb22/9748dec6e95a485fb700666faa89c51d/FLAGb8e72c234 [2024-10-24 01:49:20,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa1fbb22/9748dec6e95a485fb700666faa89c51d [2024-10-24 01:49:20,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:49:20,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:49:20,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:49:20,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:49:20,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:49:20,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:49:20" (1/1) ... [2024-10-24 01:49:20,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e64bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:20, skipping insertion in model container [2024-10-24 01:49:20,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:49:20" (1/1) ... [2024-10-24 01:49:20,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:49:21,123 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7981,7994] [2024-10-24 01:49:21,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:49:21,198 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:49:21,271 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7981,7994] [2024-10-24 01:49:21,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:49:21,371 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:49:21,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21 WrapperNode [2024-10-24 01:49:21,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:49:21,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:49:21,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:49:21,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:49:21,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,433 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 688 [2024-10-24 01:49:21,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:49:21,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:49:21,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:49:21,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:49:21,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,468 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:49:21,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:49:21,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:49:21,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:49:21,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:49:21,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (1/1) ... [2024-10-24 01:49:21,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:49:21,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:49:21,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:49:21,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:49:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:49:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:49:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:49:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:49:21,716 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:49:21,717 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:49:22,395 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-10-24 01:49:22,395 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:49:22,452 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:49:22,452 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:49:22,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:49:22 BoogieIcfgContainer [2024-10-24 01:49:22,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:49:22,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:49:22,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:49:22,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:49:22,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:49:20" (1/3) ... [2024-10-24 01:49:22,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a3160b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:49:22, skipping insertion in model container [2024-10-24 01:49:22,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:49:21" (2/3) ... [2024-10-24 01:49:22,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a3160b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:49:22, skipping insertion in model container [2024-10-24 01:49:22,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:49:22" (3/3) ... [2024-10-24 01:49:22,462 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:49:22,479 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:49:22,480 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:49:22,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:49:22,558 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;@6b56ebdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:49:22,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:49:22,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 146 states have (on average 1.7671232876712328) internal successors, (258), 147 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-24 01:49:22,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:22,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:22,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:22,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:22,583 INFO L85 PathProgramCache]: Analyzing trace with hash -819391528, now seen corresponding path program 1 times [2024-10-24 01:49:22,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:22,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098032590] [2024-10-24 01:49:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:22,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:23,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:23,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:23,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098032590] [2024-10-24 01:49:23,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098032590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:23,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:23,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:23,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972559816] [2024-10-24 01:49:23,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:23,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:49:23,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:23,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:49:23,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:23,324 INFO L87 Difference]: Start difference. First operand has 148 states, 146 states have (on average 1.7671232876712328) internal successors, (258), 147 states have internal predecessors, (258), 0 states have call successors, (0), 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 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:23,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:23,782 INFO L93 Difference]: Finished difference Result 833 states and 1343 transitions. [2024-10-24 01:49:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 01:49:23,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-10-24 01:49:23,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:23,807 INFO L225 Difference]: With dead ends: 833 [2024-10-24 01:49:23,807 INFO L226 Difference]: Without dead ends: 750 [2024-10-24 01:49:23,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:49:23,815 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 1628 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:23,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1832 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:49:23,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-10-24 01:49:23,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 226. [2024-10-24 01:49:23,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4533333333333334) internal successors, (327), 225 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 327 transitions. [2024-10-24 01:49:23,890 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 327 transitions. Word has length 75 [2024-10-24 01:49:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:23,890 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 327 transitions. [2024-10-24 01:49:23,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 327 transitions. [2024-10-24 01:49:23,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:49:23,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:23,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:23,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:49:23,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:23,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash 57964953, now seen corresponding path program 1 times [2024-10-24 01:49:23,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:23,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346608630] [2024-10-24 01:49:23,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:24,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:24,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:24,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346608630] [2024-10-24 01:49:24,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346608630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:24,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:24,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:24,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248776425] [2024-10-24 01:49:24,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:24,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:49:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:24,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:49:24,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:24,226 INFO L87 Difference]: Start difference. First operand 226 states and 327 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:24,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:24,411 INFO L93 Difference]: Finished difference Result 921 states and 1418 transitions. [2024-10-24 01:49:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:49:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:49:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:24,416 INFO L225 Difference]: With dead ends: 921 [2024-10-24 01:49:24,416 INFO L226 Difference]: Without dead ends: 801 [2024-10-24 01:49:24,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:49:24,420 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 1023 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:24,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1238 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-10-24 01:49:24,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 355. [2024-10-24 01:49:24,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.5) internal successors, (531), 354 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) [2024-10-24 01:49:24,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 531 transitions. [2024-10-24 01:49:24,440 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 531 transitions. Word has length 77 [2024-10-24 01:49:24,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:24,441 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 531 transitions. [2024-10-24 01:49:24,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:24,442 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 531 transitions. [2024-10-24 01:49:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:49:24,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:24,443 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:24,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:49:24,444 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:24,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1841121089, now seen corresponding path program 1 times [2024-10-24 01:49:24,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:24,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176449898] [2024-10-24 01:49:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:24,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:24,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176449898] [2024-10-24 01:49:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176449898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:24,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:24,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:24,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733620146] [2024-10-24 01:49:24,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:24,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:49:24,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:24,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:49:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:24,676 INFO L87 Difference]: Start difference. First operand 355 states and 531 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:24,830 INFO L93 Difference]: Finished difference Result 1045 states and 1614 transitions. [2024-10-24 01:49:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:49:24,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:49:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:24,835 INFO L225 Difference]: With dead ends: 1045 [2024-10-24 01:49:24,835 INFO L226 Difference]: Without dead ends: 925 [2024-10-24 01:49:24,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:49:24,838 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1287 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:24,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1048 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:24,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-10-24 01:49:24,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 538. [2024-10-24 01:49:24,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5270018621973929) internal successors, (820), 537 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 820 transitions. [2024-10-24 01:49:24,857 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 820 transitions. Word has length 77 [2024-10-24 01:49:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:24,858 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 820 transitions. [2024-10-24 01:49:24,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 820 transitions. [2024-10-24 01:49:24,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:49:24,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:24,860 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:24,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:49:24,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:24,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:24,861 INFO L85 PathProgramCache]: Analyzing trace with hash 836086966, now seen corresponding path program 1 times [2024-10-24 01:49:24,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:24,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554191643] [2024-10-24 01:49:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:24,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:25,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:25,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554191643] [2024-10-24 01:49:25,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554191643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:25,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:25,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:25,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567502126] [2024-10-24 01:49:25,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:25,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:49:25,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:25,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:49:25,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:25,187 INFO L87 Difference]: Start difference. First operand 538 states and 820 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:25,406 INFO L93 Difference]: Finished difference Result 955 states and 1477 transitions. [2024-10-24 01:49:25,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:49:25,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:49:25,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:25,410 INFO L225 Difference]: With dead ends: 955 [2024-10-24 01:49:25,410 INFO L226 Difference]: Without dead ends: 540 [2024-10-24 01:49:25,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:49:25,414 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 484 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:25,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 679 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-10-24 01:49:25,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2024-10-24 01:49:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5195530726256983) internal successors, (816), 537 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 816 transitions. [2024-10-24 01:49:25,427 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 816 transitions. Word has length 77 [2024-10-24 01:49:25,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:25,429 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 816 transitions. [2024-10-24 01:49:25,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,429 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 816 transitions. [2024-10-24 01:49:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:49:25,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:25,434 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:25,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:49:25,434 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:25,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash 629188471, now seen corresponding path program 1 times [2024-10-24 01:49:25,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:25,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659965950] [2024-10-24 01:49:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:25,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:25,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:25,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659965950] [2024-10-24 01:49:25,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659965950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:25,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:25,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:49:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234958463] [2024-10-24 01:49:25,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:25,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:49:25,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:25,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:49:25,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:49:25,514 INFO L87 Difference]: Start difference. First operand 538 states and 816 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:25,540 INFO L93 Difference]: Finished difference Result 1323 states and 2045 transitions. [2024-10-24 01:49:25,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:49:25,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:49:25,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:25,545 INFO L225 Difference]: With dead ends: 1323 [2024-10-24 01:49:25,545 INFO L226 Difference]: Without dead ends: 908 [2024-10-24 01:49:25,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:49:25,548 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 83 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:25,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 468 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:49:25,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-10-24 01:49:25,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 906. [2024-10-24 01:49:25,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.5226519337016575) internal successors, (1378), 905 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1378 transitions. [2024-10-24 01:49:25,567 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1378 transitions. Word has length 77 [2024-10-24 01:49:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:25,568 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1378 transitions. [2024-10-24 01:49:25,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1378 transitions. [2024-10-24 01:49:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:49:25,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:25,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:25,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:49:25,573 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:25,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash 644914821, now seen corresponding path program 1 times [2024-10-24 01:49:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:25,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274615319] [2024-10-24 01:49:25,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:25,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:25,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:25,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274615319] [2024-10-24 01:49:25,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274615319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:25,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:25,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:25,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581615625] [2024-10-24 01:49:25,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:25,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:49:25,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:25,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:49:25,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:25,745 INFO L87 Difference]: Start difference. First operand 906 states and 1378 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:25,912 INFO L93 Difference]: Finished difference Result 2057 states and 3160 transitions. [2024-10-24 01:49:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:49:25,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:49:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:25,921 INFO L225 Difference]: With dead ends: 2057 [2024-10-24 01:49:25,922 INFO L226 Difference]: Without dead ends: 1832 [2024-10-24 01:49:25,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:49:25,923 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1032 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:25,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1385 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-10-24 01:49:25,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1130. [2024-10-24 01:49:25,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1129 states have (on average 1.5279007971656333) internal successors, (1725), 1129 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1725 transitions. [2024-10-24 01:49:25,951 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1725 transitions. Word has length 77 [2024-10-24 01:49:25,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:25,951 INFO L471 AbstractCegarLoop]: Abstraction has 1130 states and 1725 transitions. [2024-10-24 01:49:25,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1725 transitions. [2024-10-24 01:49:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:49:25,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:25,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:25,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:49:25,953 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:25,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:25,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1731630291, now seen corresponding path program 1 times [2024-10-24 01:49:25,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:25,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923321139] [2024-10-24 01:49:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:25,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:26,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:26,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923321139] [2024-10-24 01:49:26,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923321139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:26,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:26,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481720311] [2024-10-24 01:49:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:26,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:49:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:49:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:26,145 INFO L87 Difference]: Start difference. First operand 1130 states and 1725 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:26,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:26,327 INFO L93 Difference]: Finished difference Result 2291 states and 3523 transitions. [2024-10-24 01:49:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:49:26,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:49:26,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:26,335 INFO L225 Difference]: With dead ends: 2291 [2024-10-24 01:49:26,335 INFO L226 Difference]: Without dead ends: 2066 [2024-10-24 01:49:26,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:49:26,337 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 1074 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:26,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1687 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2024-10-24 01:49:26,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1369. [2024-10-24 01:49:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1368 states have (on average 1.5321637426900585) internal successors, (2096), 1368 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2096 transitions. [2024-10-24 01:49:26,380 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2096 transitions. Word has length 77 [2024-10-24 01:49:26,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:26,380 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 2096 transitions. [2024-10-24 01:49:26,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2096 transitions. [2024-10-24 01:49:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:49:26,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:26,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:26,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:49:26,382 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:26,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:26,382 INFO L85 PathProgramCache]: Analyzing trace with hash 294962861, now seen corresponding path program 1 times [2024-10-24 01:49:26,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:26,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405134722] [2024-10-24 01:49:26,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:26,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:26,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:26,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405134722] [2024-10-24 01:49:26,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405134722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:26,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:26,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614112421] [2024-10-24 01:49:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:26,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:49:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:49:26,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:26,547 INFO L87 Difference]: Start difference. First operand 1369 states and 2096 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:26,696 INFO L93 Difference]: Finished difference Result 2530 states and 3894 transitions. [2024-10-24 01:49:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:49:26,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:49:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:26,704 INFO L225 Difference]: With dead ends: 2530 [2024-10-24 01:49:26,705 INFO L226 Difference]: Without dead ends: 2305 [2024-10-24 01:49:26,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:49:26,706 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 1084 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:26,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1241 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2024-10-24 01:49:26,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 1608. [2024-10-24 01:49:26,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.5351586807716242) internal successors, (2467), 1607 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2467 transitions. [2024-10-24 01:49:26,758 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2467 transitions. Word has length 77 [2024-10-24 01:49:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:26,758 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2467 transitions. [2024-10-24 01:49:26,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:26,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2467 transitions. [2024-10-24 01:49:26,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 01:49:26,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:26,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:26,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:49:26,760 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:26,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:26,761 INFO L85 PathProgramCache]: Analyzing trace with hash 146982893, now seen corresponding path program 1 times [2024-10-24 01:49:26,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:26,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869757162] [2024-10-24 01:49:26,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:26,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:26,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:26,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869757162] [2024-10-24 01:49:26,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869757162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:26,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:26,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:49:26,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995443547] [2024-10-24 01:49:26,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:26,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:49:26,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:26,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:49:26,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:49:26,880 INFO L87 Difference]: Start difference. First operand 1608 states and 2467 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2024-10-24 01:49:27,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:27,009 INFO L93 Difference]: Finished difference Result 3163 states and 4876 transitions. [2024-10-24 01:49:27,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:49:27,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 78 [2024-10-24 01:49:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:27,014 INFO L225 Difference]: With dead ends: 3163 [2024-10-24 01:49:27,015 INFO L226 Difference]: Without dead ends: 1608 [2024-10-24 01:49:27,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:27,017 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 510 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:27,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 140 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:27,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-24 01:49:27,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-24 01:49:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.5183571873055384) internal successors, (2440), 1607 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2440 transitions. [2024-10-24 01:49:27,048 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2440 transitions. Word has length 78 [2024-10-24 01:49:27,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:27,049 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2440 transitions. [2024-10-24 01:49:27,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2024-10-24 01:49:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2440 transitions. [2024-10-24 01:49:27,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 01:49:27,050 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:27,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:27,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:49:27,050 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:27,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:27,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1376040940, now seen corresponding path program 1 times [2024-10-24 01:49:27,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:27,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485376187] [2024-10-24 01:49:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:27,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:27,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:27,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:27,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485376187] [2024-10-24 01:49:27,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485376187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:27,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:27,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:49:27,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936119885] [2024-10-24 01:49:27,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:27,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:49:27,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:27,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:49:27,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:49:27,148 INFO L87 Difference]: Start difference. First operand 1608 states and 2440 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:27,281 INFO L93 Difference]: Finished difference Result 3171 states and 4832 transitions. [2024-10-24 01:49:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:49:27,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-24 01:49:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:27,287 INFO L225 Difference]: With dead ends: 3171 [2024-10-24 01:49:27,287 INFO L226 Difference]: Without dead ends: 1608 [2024-10-24 01:49:27,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:27,290 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 526 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:27,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 124 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:27,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-24 01:49:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-24 01:49:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.5015556938394523) internal successors, (2413), 1607 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2413 transitions. [2024-10-24 01:49:27,322 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2413 transitions. Word has length 79 [2024-10-24 01:49:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:27,322 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2413 transitions. [2024-10-24 01:49:27,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2413 transitions. [2024-10-24 01:49:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 01:49:27,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:27,324 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:27,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:49:27,324 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:27,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:27,324 INFO L85 PathProgramCache]: Analyzing trace with hash -366675763, now seen corresponding path program 1 times [2024-10-24 01:49:27,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:27,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790906745] [2024-10-24 01:49:27,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:27,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:27,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790906745] [2024-10-24 01:49:27,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790906745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:27,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:27,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:49:27,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036030519] [2024-10-24 01:49:27,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:27,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:49:27,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:27,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:49:27,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:49:27,460 INFO L87 Difference]: Start difference. First operand 1608 states and 2413 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:27,584 INFO L93 Difference]: Finished difference Result 3167 states and 4774 transitions. [2024-10-24 01:49:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:49:27,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-24 01:49:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:27,589 INFO L225 Difference]: With dead ends: 3167 [2024-10-24 01:49:27,590 INFO L226 Difference]: Without dead ends: 1608 [2024-10-24 01:49:27,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:27,593 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 508 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:27,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 132 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-24 01:49:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-24 01:49:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.4847542003733665) internal successors, (2386), 1607 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2386 transitions. [2024-10-24 01:49:27,629 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2386 transitions. Word has length 80 [2024-10-24 01:49:27,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:27,629 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2386 transitions. [2024-10-24 01:49:27,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2386 transitions. [2024-10-24 01:49:27,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:49:27,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:27,632 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:27,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:49:27,632 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:27,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash -587442520, now seen corresponding path program 1 times [2024-10-24 01:49:27,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:27,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484247371] [2024-10-24 01:49:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:27,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:27,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:27,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484247371] [2024-10-24 01:49:27,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484247371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:27,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:27,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:49:27,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515998291] [2024-10-24 01:49:27,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:27,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:49:27,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:27,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:49:27,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:49:27,741 INFO L87 Difference]: Start difference. First operand 1608 states and 2386 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:27,864 INFO L93 Difference]: Finished difference Result 3175 states and 4729 transitions. [2024-10-24 01:49:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:49:27,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:49:27,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:27,870 INFO L225 Difference]: With dead ends: 3175 [2024-10-24 01:49:27,870 INFO L226 Difference]: Without dead ends: 1608 [2024-10-24 01:49:27,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:27,873 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 525 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:27,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 116 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:27,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-24 01:49:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-24 01:49:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.4679527069072806) internal successors, (2359), 1607 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2359 transitions. [2024-10-24 01:49:27,909 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2359 transitions. Word has length 81 [2024-10-24 01:49:27,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:27,910 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2359 transitions. [2024-10-24 01:49:27,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2359 transitions. [2024-10-24 01:49:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:49:27,911 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:27,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:27,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:49:27,911 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:27,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1700604821, now seen corresponding path program 1 times [2024-10-24 01:49:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:27,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868111360] [2024-10-24 01:49:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:28,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:28,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868111360] [2024-10-24 01:49:28,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868111360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:28,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:28,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:49:28,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668392776] [2024-10-24 01:49:28,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:28,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:49:28,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:28,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:49:28,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:49:28,020 INFO L87 Difference]: Start difference. First operand 1608 states and 2359 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:28,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:28,214 INFO L93 Difference]: Finished difference Result 4697 states and 6930 transitions. [2024-10-24 01:49:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:49:28,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-24 01:49:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:28,223 INFO L225 Difference]: With dead ends: 4697 [2024-10-24 01:49:28,224 INFO L226 Difference]: Without dead ends: 3126 [2024-10-24 01:49:28,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:49:28,227 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 778 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:28,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 176 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:49:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3126 states. [2024-10-24 01:49:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3126 to 3124. [2024-10-24 01:49:28,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 1.4668587896253602) internal successors, (4581), 3123 states have internal predecessors, (4581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4581 transitions. [2024-10-24 01:49:28,286 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4581 transitions. Word has length 82 [2024-10-24 01:49:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:28,286 INFO L471 AbstractCegarLoop]: Abstraction has 3124 states and 4581 transitions. [2024-10-24 01:49:28,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4581 transitions. [2024-10-24 01:49:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 01:49:28,288 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:28,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:28,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:49:28,289 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:28,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -659470276, now seen corresponding path program 1 times [2024-10-24 01:49:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993650009] [2024-10-24 01:49:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:28,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:28,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993650009] [2024-10-24 01:49:28,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993650009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:28,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:28,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:49:28,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417460382] [2024-10-24 01:49:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:28,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:49:28,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:28,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:49:28,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:49:28,578 INFO L87 Difference]: Start difference. First operand 3124 states and 4581 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:28,613 INFO L93 Difference]: Finished difference Result 3150 states and 4618 transitions. [2024-10-24 01:49:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:49:28,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-24 01:49:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:28,623 INFO L225 Difference]: With dead ends: 3150 [2024-10-24 01:49:28,623 INFO L226 Difference]: Without dead ends: 3148 [2024-10-24 01:49:28,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:49:28,625 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:28,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 740 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:49:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2024-10-24 01:49:28,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3148. [2024-10-24 01:49:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.4588496981251986) internal successors, (4591), 3147 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4591 transitions. [2024-10-24 01:49:28,692 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 4591 transitions. Word has length 83 [2024-10-24 01:49:28,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:28,692 INFO L471 AbstractCegarLoop]: Abstraction has 3148 states and 4591 transitions. [2024-10-24 01:49:28,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 4591 transitions. [2024-10-24 01:49:28,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 01:49:28,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:28,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:28,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:49:28,694 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:28,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:28,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1714989240, now seen corresponding path program 1 times [2024-10-24 01:49:28,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:28,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077687699] [2024-10-24 01:49:28,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:28,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:28,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:28,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:28,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077687699] [2024-10-24 01:49:28,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077687699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:28,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:28,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:49:28,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585081861] [2024-10-24 01:49:28,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:28,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:49:28,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:28,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:49:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:49:28,886 INFO L87 Difference]: Start difference. First operand 3148 states and 4591 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:28,938 INFO L93 Difference]: Finished difference Result 7361 states and 10756 transitions. [2024-10-24 01:49:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:49:28,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-24 01:49:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:28,953 INFO L225 Difference]: With dead ends: 7361 [2024-10-24 01:49:28,953 INFO L226 Difference]: Without dead ends: 4435 [2024-10-24 01:49:28,958 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 [2024-10-24 01:49:28,959 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 103 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:28,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 520 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:49:28,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2024-10-24 01:49:29,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4433. [2024-10-24 01:49:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4432 states have (on average 1.4528429602888087) internal successors, (6439), 4432 states have internal predecessors, (6439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6439 transitions. [2024-10-24 01:49:29,038 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6439 transitions. Word has length 83 [2024-10-24 01:49:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:29,038 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6439 transitions. [2024-10-24 01:49:29,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6439 transitions. [2024-10-24 01:49:29,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:49:29,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:29,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:29,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:49:29,043 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:29,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:29,043 INFO L85 PathProgramCache]: Analyzing trace with hash -358102445, now seen corresponding path program 1 times [2024-10-24 01:49:29,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:29,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202561413] [2024-10-24 01:49:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:29,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:29,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:29,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:29,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202561413] [2024-10-24 01:49:29,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202561413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:29,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:29,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:49:29,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524560176] [2024-10-24 01:49:29,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:29,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:49:29,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:29,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:49:29,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:49:29,447 INFO L87 Difference]: Start difference. First operand 4433 states and 6439 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:29,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:29,860 INFO L93 Difference]: Finished difference Result 12236 states and 17800 transitions. [2024-10-24 01:49:29,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:49:29,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:49:29,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:29,890 INFO L225 Difference]: With dead ends: 12236 [2024-10-24 01:49:29,890 INFO L226 Difference]: Without dead ends: 8655 [2024-10-24 01:49:29,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-24 01:49:29,898 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 700 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:29,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 452 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:49:29,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8655 states. [2024-10-24 01:49:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8655 to 4433. [2024-10-24 01:49:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4432 states have (on average 1.4526173285198556) internal successors, (6438), 4432 states have internal predecessors, (6438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6438 transitions. [2024-10-24 01:49:30,008 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6438 transitions. Word has length 84 [2024-10-24 01:49:30,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:30,008 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6438 transitions. [2024-10-24 01:49:30,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:30,009 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6438 transitions. [2024-10-24 01:49:30,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:49:30,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:30,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:30,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:49:30,011 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:30,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2019535681, now seen corresponding path program 1 times [2024-10-24 01:49:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135867507] [2024-10-24 01:49:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:30,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:30,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135867507] [2024-10-24 01:49:30,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135867507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:30,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:30,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:49:30,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033958753] [2024-10-24 01:49:30,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:30,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:49:30,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:30,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:49:30,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:49:30,492 INFO L87 Difference]: Start difference. First operand 4433 states and 6438 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:31,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:31,145 INFO L93 Difference]: Finished difference Result 13388 states and 19294 transitions. [2024-10-24 01:49:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:49:31,145 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:49:31,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:31,220 INFO L225 Difference]: With dead ends: 13388 [2024-10-24 01:49:31,220 INFO L226 Difference]: Without dead ends: 9168 [2024-10-24 01:49:31,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-10-24 01:49:31,226 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 1053 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:31,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 630 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:49:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9168 states. [2024-10-24 01:49:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9168 to 4505. [2024-10-24 01:49:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 4504 states have (on average 1.4513765541740675) internal successors, (6537), 4504 states have internal predecessors, (6537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:31,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6537 transitions. [2024-10-24 01:49:31,322 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6537 transitions. Word has length 84 [2024-10-24 01:49:31,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:31,322 INFO L471 AbstractCegarLoop]: Abstraction has 4505 states and 6537 transitions. [2024-10-24 01:49:31,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6537 transitions. [2024-10-24 01:49:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:49:31,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:31,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:31,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:49:31,324 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:31,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1432585813, now seen corresponding path program 1 times [2024-10-24 01:49:31,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:31,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590119325] [2024-10-24 01:49:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:31,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:31,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590119325] [2024-10-24 01:49:31,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590119325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:31,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:31,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:49:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097472882] [2024-10-24 01:49:31,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:31,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:49:31,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:49:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:49:31,608 INFO L87 Difference]: Start difference. First operand 4505 states and 6537 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:32,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:32,112 INFO L93 Difference]: Finished difference Result 9438 states and 13662 transitions. [2024-10-24 01:49:32,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:49:32,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:49:32,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:32,121 INFO L225 Difference]: With dead ends: 9438 [2024-10-24 01:49:32,121 INFO L226 Difference]: Without dead ends: 5126 [2024-10-24 01:49:32,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-24 01:49:32,128 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 761 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:32,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 590 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:49:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2024-10-24 01:49:32,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 4433. [2024-10-24 01:49:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4432 states have (on average 1.4519404332129964) internal successors, (6435), 4432 states have internal predecessors, (6435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:32,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6435 transitions. [2024-10-24 01:49:32,206 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6435 transitions. Word has length 84 [2024-10-24 01:49:32,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:32,206 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6435 transitions. [2024-10-24 01:49:32,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:32,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6435 transitions. [2024-10-24 01:49:32,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:49:32,208 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:32,208 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:32,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:49:32,208 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:32,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash 485836371, now seen corresponding path program 1 times [2024-10-24 01:49:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:32,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627517806] [2024-10-24 01:49:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:32,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:32,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:32,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627517806] [2024-10-24 01:49:32,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627517806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:32,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:32,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:49:32,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435291882] [2024-10-24 01:49:32,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:32,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:49:32,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:49:32,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:49:32,494 INFO L87 Difference]: Start difference. First operand 4433 states and 6435 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:32,960 INFO L93 Difference]: Finished difference Result 13074 states and 18935 transitions. [2024-10-24 01:49:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:49:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:49:32,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:32,977 INFO L225 Difference]: With dead ends: 13074 [2024-10-24 01:49:32,977 INFO L226 Difference]: Without dead ends: 8852 [2024-10-24 01:49:32,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-24 01:49:32,984 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 767 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:32,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 503 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:49:32,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8852 states. [2024-10-24 01:49:33,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8852 to 4433. [2024-10-24 01:49:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4432 states have (on average 1.4494584837545126) internal successors, (6424), 4432 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:33,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6424 transitions. [2024-10-24 01:49:33,117 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6424 transitions. Word has length 84 [2024-10-24 01:49:33,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:33,117 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6424 transitions. [2024-10-24 01:49:33,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6424 transitions. [2024-10-24 01:49:33,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:49:33,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:33,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:33,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:49:33,119 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:33,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:33,120 INFO L85 PathProgramCache]: Analyzing trace with hash 990191442, now seen corresponding path program 1 times [2024-10-24 01:49:33,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:33,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945991412] [2024-10-24 01:49:33,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:33,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:33,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:33,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945991412] [2024-10-24 01:49:33,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945991412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:33,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:33,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:49:33,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604412165] [2024-10-24 01:49:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:33,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:49:33,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:33,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:49:33,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:49:33,465 INFO L87 Difference]: Start difference. First operand 4433 states and 6424 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:34,104 INFO L93 Difference]: Finished difference Result 13194 states and 19098 transitions. [2024-10-24 01:49:34,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:49:34,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-24 01:49:34,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:34,122 INFO L225 Difference]: With dead ends: 13194 [2024-10-24 01:49:34,123 INFO L226 Difference]: Without dead ends: 8897 [2024-10-24 01:49:34,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:49:34,131 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 578 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:34,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 799 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:49:34,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8897 states. [2024-10-24 01:49:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8897 to 4433. [2024-10-24 01:49:34,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4432 states have (on average 1.4481046931407942) internal successors, (6418), 4432 states have internal predecessors, (6418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6418 transitions. [2024-10-24 01:49:34,279 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6418 transitions. Word has length 85 [2024-10-24 01:49:34,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:34,280 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6418 transitions. [2024-10-24 01:49:34,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:34,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6418 transitions. [2024-10-24 01:49:34,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 01:49:34,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:34,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:34,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:49:34,282 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:34,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:34,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1641074784, now seen corresponding path program 1 times [2024-10-24 01:49:34,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:34,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524434242] [2024-10-24 01:49:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:34,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:34,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:34,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524434242] [2024-10-24 01:49:34,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524434242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:34,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:34,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:49:34,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750902863] [2024-10-24 01:49:34,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:34,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:49:34,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:49:34,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:49:34,560 INFO L87 Difference]: Start difference. First operand 4433 states and 6418 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:35,023 INFO L93 Difference]: Finished difference Result 13149 states and 19020 transitions. [2024-10-24 01:49:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:49:35,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-10-24 01:49:35,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:35,041 INFO L225 Difference]: With dead ends: 13149 [2024-10-24 01:49:35,041 INFO L226 Difference]: Without dead ends: 8882 [2024-10-24 01:49:35,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-24 01:49:35,051 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 477 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:35,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 547 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:49:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8882 states. [2024-10-24 01:49:35,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8882 to 4433. [2024-10-24 01:49:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4432 states have (on average 1.4460740072202165) internal successors, (6409), 4432 states have internal predecessors, (6409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6409 transitions. [2024-10-24 01:49:35,149 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6409 transitions. Word has length 86 [2024-10-24 01:49:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:35,149 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6409 transitions. [2024-10-24 01:49:35,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6409 transitions. [2024-10-24 01:49:35,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 01:49:35,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:35,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:35,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:49:35,151 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:35,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:35,152 INFO L85 PathProgramCache]: Analyzing trace with hash 294400252, now seen corresponding path program 1 times [2024-10-24 01:49:35,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:35,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599424706] [2024-10-24 01:49:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:35,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:35,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:35,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599424706] [2024-10-24 01:49:35,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599424706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:35,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:35,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 01:49:35,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631126158] [2024-10-24 01:49:35,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:35,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 01:49:35,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:35,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 01:49:35,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:49:35,884 INFO L87 Difference]: Start difference. First operand 4433 states and 6409 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:36,815 INFO L93 Difference]: Finished difference Result 18622 states and 27033 transitions. [2024-10-24 01:49:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:49:36,817 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-24 01:49:36,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:36,849 INFO L225 Difference]: With dead ends: 18622 [2024-10-24 01:49:36,849 INFO L226 Difference]: Without dead ends: 17248 [2024-10-24 01:49:36,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-24 01:49:36,859 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 852 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:36,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 3271 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:49:36,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17248 states. [2024-10-24 01:49:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17248 to 4406. [2024-10-24 01:49:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 1.4451759364358683) internal successors, (6366), 4405 states have internal predecessors, (6366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 6366 transitions. [2024-10-24 01:49:36,996 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 6366 transitions. Word has length 87 [2024-10-24 01:49:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:36,996 INFO L471 AbstractCegarLoop]: Abstraction has 4406 states and 6366 transitions. [2024-10-24 01:49:36,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 6366 transitions. [2024-10-24 01:49:36,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 01:49:36,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:36,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:36,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:49:36,999 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:36,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash -175919843, now seen corresponding path program 1 times [2024-10-24 01:49:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:36,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283092914] [2024-10-24 01:49:36,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:39,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:39,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:39,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283092914] [2024-10-24 01:49:39,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283092914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:39,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:39,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2024-10-24 01:49:39,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794579863] [2024-10-24 01:49:39,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:39,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-24 01:49:39,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:39,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-24 01:49:39,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 01:49:39,606 INFO L87 Difference]: Start difference. First operand 4406 states and 6366 transitions. Second operand has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:44,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:44,900 INFO L93 Difference]: Finished difference Result 8278 states and 11970 transitions. [2024-10-24 01:49:44,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-24 01:49:44,901 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-24 01:49:44,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:44,917 INFO L225 Difference]: With dead ends: 8278 [2024-10-24 01:49:44,918 INFO L226 Difference]: Without dead ends: 7718 [2024-10-24 01:49:44,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=539, Invalid=3243, Unknown=0, NotChecked=0, Total=3782 [2024-10-24 01:49:44,922 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 1359 mSDsluCounter, 8460 mSDsCounter, 0 mSdLazyCounter, 6294 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 8942 SdHoareTripleChecker+Invalid, 6296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:44,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 8942 Invalid, 6296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6294 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-24 01:49:44,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2024-10-24 01:49:44,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 4430. [2024-10-24 01:49:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4430 states, 4429 states have (on average 1.444344095732671) internal successors, (6397), 4429 states have internal predecessors, (6397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:44,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 6397 transitions. [2024-10-24 01:49:44,999 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 6397 transitions. Word has length 87 [2024-10-24 01:49:45,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:45,000 INFO L471 AbstractCegarLoop]: Abstraction has 4430 states and 6397 transitions. [2024-10-24 01:49:45,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:45,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 6397 transitions. [2024-10-24 01:49:45,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 01:49:45,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:45,001 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:45,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:49:45,002 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:45,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:45,002 INFO L85 PathProgramCache]: Analyzing trace with hash -674427557, now seen corresponding path program 1 times [2024-10-24 01:49:45,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:45,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588434298] [2024-10-24 01:49:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:45,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:46,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:46,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588434298] [2024-10-24 01:49:46,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588434298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:46,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 01:49:46,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688193600] [2024-10-24 01:49:46,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:46,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 01:49:46,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 01:49:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:49:46,047 INFO L87 Difference]: Start difference. First operand 4430 states and 6397 transitions. Second operand has 19 states, 19 states have (on average 4.578947368421052) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:47,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:47,626 INFO L93 Difference]: Finished difference Result 7047 states and 10194 transitions. [2024-10-24 01:49:47,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 01:49:47,627 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.578947368421052) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-24 01:49:47,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:47,635 INFO L225 Difference]: With dead ends: 7047 [2024-10-24 01:49:47,636 INFO L226 Difference]: Without dead ends: 5673 [2024-10-24 01:49:47,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=304, Invalid=1178, Unknown=0, NotChecked=0, Total=1482 [2024-10-24 01:49:47,639 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 1223 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:47,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 2740 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 01:49:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5673 states. [2024-10-24 01:49:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 4420. [2024-10-24 01:49:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4420 states, 4419 states have (on average 1.4439918533604887) internal successors, (6381), 4419 states have internal predecessors, (6381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 6381 transitions. [2024-10-24 01:49:47,706 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 6381 transitions. Word has length 87 [2024-10-24 01:49:47,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:47,706 INFO L471 AbstractCegarLoop]: Abstraction has 4420 states and 6381 transitions. [2024-10-24 01:49:47,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.578947368421052) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 6381 transitions. [2024-10-24 01:49:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 01:49:47,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:47,708 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:47,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:49:47,708 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:47,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1498021318, now seen corresponding path program 1 times [2024-10-24 01:49:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:47,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572806131] [2024-10-24 01:49:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:47,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:48,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:48,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572806131] [2024-10-24 01:49:48,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572806131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:48,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:48,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 01:49:48,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608093285] [2024-10-24 01:49:48,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:48,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 01:49:48,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:48,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 01:49:48,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:49:48,597 INFO L87 Difference]: Start difference. First operand 4420 states and 6381 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:49,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:49,713 INFO L93 Difference]: Finished difference Result 6791 states and 9823 transitions. [2024-10-24 01:49:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:49:49,713 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-24 01:49:49,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:49,720 INFO L225 Difference]: With dead ends: 6791 [2024-10-24 01:49:49,720 INFO L226 Difference]: Without dead ends: 5643 [2024-10-24 01:49:49,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2024-10-24 01:49:49,723 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 1101 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:49,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 2649 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:49:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2024-10-24 01:49:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 4410. [2024-10-24 01:49:49,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4410 states, 4409 states have (on average 1.4440916307552734) internal successors, (6367), 4409 states have internal predecessors, (6367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4410 states to 4410 states and 6367 transitions. [2024-10-24 01:49:49,794 INFO L78 Accepts]: Start accepts. Automaton has 4410 states and 6367 transitions. Word has length 87 [2024-10-24 01:49:49,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:49,794 INFO L471 AbstractCegarLoop]: Abstraction has 4410 states and 6367 transitions. [2024-10-24 01:49:49,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:49,795 INFO L276 IsEmpty]: Start isEmpty. Operand 4410 states and 6367 transitions. [2024-10-24 01:49:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 01:49:49,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:49,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:49,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 01:49:49,797 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:49,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:49,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1804071413, now seen corresponding path program 1 times [2024-10-24 01:49:49,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:49,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373697902] [2024-10-24 01:49:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:49,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:50,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:50,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373697902] [2024-10-24 01:49:50,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373697902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:50,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:50,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:49:50,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371325718] [2024-10-24 01:49:50,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:50,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 01:49:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:50,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 01:49:50,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:49:50,408 INFO L87 Difference]: Start difference. First operand 4410 states and 6367 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:50,747 INFO L93 Difference]: Finished difference Result 9989 states and 14483 transitions. [2024-10-24 01:49:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:49:50,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-24 01:49:50,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:50,757 INFO L225 Difference]: With dead ends: 9989 [2024-10-24 01:49:50,758 INFO L226 Difference]: Without dead ends: 8630 [2024-10-24 01:49:50,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:49:50,762 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 454 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:50,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1738 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:49:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2024-10-24 01:49:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 4374. [2024-10-24 01:49:50,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4374 states, 4373 states have (on average 1.4438600503087125) internal successors, (6314), 4373 states have internal predecessors, (6314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 6314 transitions. [2024-10-24 01:49:50,839 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 6314 transitions. Word has length 88 [2024-10-24 01:49:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:50,840 INFO L471 AbstractCegarLoop]: Abstraction has 4374 states and 6314 transitions. [2024-10-24 01:49:50,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 6314 transitions. [2024-10-24 01:49:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 01:49:50,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:50,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:50,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 01:49:50,841 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:50,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1317922746, now seen corresponding path program 1 times [2024-10-24 01:49:50,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:50,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678662684] [2024-10-24 01:49:50,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:50,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:51,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:51,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678662684] [2024-10-24 01:49:51,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678662684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:51,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:51,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:49:51,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569697537] [2024-10-24 01:49:51,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:51,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:49:51,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:51,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:49:51,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:49:51,401 INFO L87 Difference]: Start difference. First operand 4374 states and 6314 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:52,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:52,007 INFO L93 Difference]: Finished difference Result 9945 states and 14420 transitions. [2024-10-24 01:49:52,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:49:52,008 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-24 01:49:52,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:52,014 INFO L225 Difference]: With dead ends: 9945 [2024-10-24 01:49:52,014 INFO L226 Difference]: Without dead ends: 8611 [2024-10-24 01:49:52,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:49:52,018 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 648 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:52,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1882 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:49:52,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8611 states. [2024-10-24 01:49:52,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8611 to 4370. [2024-10-24 01:49:52,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4370 states, 4369 states have (on average 1.443121995880064) internal successors, (6305), 4369 states have internal predecessors, (6305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4370 states to 4370 states and 6305 transitions. [2024-10-24 01:49:52,089 INFO L78 Accepts]: Start accepts. Automaton has 4370 states and 6305 transitions. Word has length 88 [2024-10-24 01:49:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:52,090 INFO L471 AbstractCegarLoop]: Abstraction has 4370 states and 6305 transitions. [2024-10-24 01:49:52,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:52,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4370 states and 6305 transitions. [2024-10-24 01:49:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 01:49:52,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:52,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:52,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 01:49:52,091 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:52,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1167754749, now seen corresponding path program 1 times [2024-10-24 01:49:52,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:52,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807398773] [2024-10-24 01:49:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:52,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:52,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807398773] [2024-10-24 01:49:52,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807398773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:52,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:52,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:49:52,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289971162] [2024-10-24 01:49:52,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:52,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:49:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:52,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:49:52,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:49:52,679 INFO L87 Difference]: Start difference. First operand 4370 states and 6305 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 12 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:53,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:53,147 INFO L93 Difference]: Finished difference Result 6259 states and 9055 transitions. [2024-10-24 01:49:53,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:49:53,148 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 12 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-24 01:49:53,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:53,153 INFO L225 Difference]: With dead ends: 6259 [2024-10-24 01:49:53,153 INFO L226 Difference]: Without dead ends: 4897 [2024-10-24 01:49:53,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:49:53,155 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 826 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:53,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1887 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:49:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2024-10-24 01:49:53,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 4338. [2024-10-24 01:49:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4338 states, 4337 states have (on average 1.4450080700945354) internal successors, (6267), 4337 states have internal predecessors, (6267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4338 states to 4338 states and 6267 transitions. [2024-10-24 01:49:53,216 INFO L78 Accepts]: Start accepts. Automaton has 4338 states and 6267 transitions. Word has length 89 [2024-10-24 01:49:53,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:53,216 INFO L471 AbstractCegarLoop]: Abstraction has 4338 states and 6267 transitions. [2024-10-24 01:49:53,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 12 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:53,216 INFO L276 IsEmpty]: Start isEmpty. Operand 4338 states and 6267 transitions. [2024-10-24 01:49:53,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 01:49:53,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:53,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:53,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 01:49:53,218 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:53,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:53,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2010291613, now seen corresponding path program 1 times [2024-10-24 01:49:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:53,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396256599] [2024-10-24 01:49:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:53,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:49:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:49:55,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:49:55,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396256599] [2024-10-24 01:49:55,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396256599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:49:55,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:49:55,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2024-10-24 01:49:55,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810277691] [2024-10-24 01:49:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:49:55,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-24 01:49:55,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:49:55,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-24 01:49:55,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=847, Unknown=0, NotChecked=0, Total=930 [2024-10-24 01:49:55,283 INFO L87 Difference]: Start difference. First operand 4338 states and 6267 transitions. Second operand has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 30 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:59,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:49:59,604 INFO L93 Difference]: Finished difference Result 8035 states and 11626 transitions. [2024-10-24 01:49:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 01:49:59,605 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 30 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-24 01:49:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:49:59,609 INFO L225 Difference]: With dead ends: 8035 [2024-10-24 01:49:59,609 INFO L226 Difference]: Without dead ends: 6918 [2024-10-24 01:49:59,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=578, Invalid=2728, Unknown=0, NotChecked=0, Total=3306 [2024-10-24 01:49:59,612 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 1551 mSDsluCounter, 5571 mSDsCounter, 0 mSdLazyCounter, 4030 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 5907 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:49:59,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 5907 Invalid, 4030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4030 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 01:49:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2024-10-24 01:49:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 4346. [2024-10-24 01:49:59,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4346 states, 4345 states have (on average 1.4444188722669735) internal successors, (6276), 4345 states have internal predecessors, (6276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4346 states to 4346 states and 6276 transitions. [2024-10-24 01:49:59,672 INFO L78 Accepts]: Start accepts. Automaton has 4346 states and 6276 transitions. Word has length 89 [2024-10-24 01:49:59,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:49:59,672 INFO L471 AbstractCegarLoop]: Abstraction has 4346 states and 6276 transitions. [2024-10-24 01:49:59,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 30 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:49:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4346 states and 6276 transitions. [2024-10-24 01:49:59,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 01:49:59,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:49:59,673 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:49:59,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 01:49:59,674 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:49:59,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:49:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1207577815, now seen corresponding path program 1 times [2024-10-24 01:49:59,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:49:59,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263729320] [2024-10-24 01:49:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:49:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:49:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:00,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263729320] [2024-10-24 01:50:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263729320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:00,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:00,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:50:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487703884] [2024-10-24 01:50:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:00,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 01:50:00,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:00,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 01:50:00,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:50:00,107 INFO L87 Difference]: Start difference. First operand 4346 states and 6276 transitions. Second operand has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:00,448 INFO L93 Difference]: Finished difference Result 9461 states and 13727 transitions. [2024-10-24 01:50:00,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 01:50:00,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-10-24 01:50:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:00,456 INFO L225 Difference]: With dead ends: 9461 [2024-10-24 01:50:00,457 INFO L226 Difference]: Without dead ends: 8316 [2024-10-24 01:50:00,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:50:00,460 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 566 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:00,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1139 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:00,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8316 states. [2024-10-24 01:50:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8316 to 4210. [2024-10-24 01:50:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4210 states, 4209 states have (on average 1.4466619149441673) internal successors, (6089), 4209 states have internal predecessors, (6089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4210 states to 4210 states and 6089 transitions. [2024-10-24 01:50:00,532 INFO L78 Accepts]: Start accepts. Automaton has 4210 states and 6089 transitions. Word has length 90 [2024-10-24 01:50:00,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:00,532 INFO L471 AbstractCegarLoop]: Abstraction has 4210 states and 6089 transitions. [2024-10-24 01:50:00,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:00,532 INFO L276 IsEmpty]: Start isEmpty. Operand 4210 states and 6089 transitions. [2024-10-24 01:50:00,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:50:00,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:00,535 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 01:50:00,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 01:50:00,535 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:00,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash -910367117, now seen corresponding path program 1 times [2024-10-24 01:50:00,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524244105] [2024-10-24 01:50:00,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:00,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:00,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524244105] [2024-10-24 01:50:00,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524244105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:00,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:00,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:50:00,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753265656] [2024-10-24 01:50:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:00,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:50:00,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:00,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:50:00,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:00,649 INFO L87 Difference]: Start difference. First operand 4210 states and 6089 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:00,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:00,682 INFO L93 Difference]: Finished difference Result 8840 states and 12830 transitions. [2024-10-24 01:50:00,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:50:00,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-10-24 01:50:00,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:00,689 INFO L225 Difference]: With dead ends: 8840 [2024-10-24 01:50:00,689 INFO L226 Difference]: Without dead ends: 5914 [2024-10-24 01:50:00,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:00,695 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 83 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:00,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 393 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:00,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2024-10-24 01:50:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5696. [2024-10-24 01:50:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5696 states, 5695 states have (on average 1.4396839332748024) internal successors, (8199), 5695 states have internal predecessors, (8199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5696 states to 5696 states and 8199 transitions. [2024-10-24 01:50:00,750 INFO L78 Accepts]: Start accepts. Automaton has 5696 states and 8199 transitions. Word has length 116 [2024-10-24 01:50:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:00,750 INFO L471 AbstractCegarLoop]: Abstraction has 5696 states and 8199 transitions. [2024-10-24 01:50:00,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:00,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5696 states and 8199 transitions. [2024-10-24 01:50:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 01:50:00,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:00,752 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] [2024-10-24 01:50:00,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 01:50:00,752 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:00,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:00,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1799440230, now seen corresponding path program 1 times [2024-10-24 01:50:00,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:00,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349338102] [2024-10-24 01:50:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:00,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:00,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349338102] [2024-10-24 01:50:00,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349338102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:00,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:00,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:50:00,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016400854] [2024-10-24 01:50:00,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:00,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:00,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:00,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:00,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:00,911 INFO L87 Difference]: Start difference. First operand 5696 states and 8199 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:01,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:01,197 INFO L93 Difference]: Finished difference Result 21040 states and 30531 transitions. [2024-10-24 01:50:01,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:50:01,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-10-24 01:50:01,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:01,217 INFO L225 Difference]: With dead ends: 21040 [2024-10-24 01:50:01,217 INFO L226 Difference]: Without dead ends: 15468 [2024-10-24 01:50:01,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:50:01,230 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 934 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:01,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 338 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:50:01,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15468 states. [2024-10-24 01:50:01,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15468 to 12266. [2024-10-24 01:50:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12266 states, 12265 states have (on average 1.440195678760701) internal successors, (17664), 12265 states have internal predecessors, (17664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12266 states to 12266 states and 17664 transitions. [2024-10-24 01:50:01,382 INFO L78 Accepts]: Start accepts. Automaton has 12266 states and 17664 transitions. Word has length 118 [2024-10-24 01:50:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:01,383 INFO L471 AbstractCegarLoop]: Abstraction has 12266 states and 17664 transitions. [2024-10-24 01:50:01,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand 12266 states and 17664 transitions. [2024-10-24 01:50:01,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 01:50:01,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:01,385 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 01:50:01,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 01:50:01,385 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:01,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1412111365, now seen corresponding path program 1 times [2024-10-24 01:50:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:01,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834961763] [2024-10-24 01:50:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:01,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:01,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834961763] [2024-10-24 01:50:01,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834961763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:01,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:01,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:50:01,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859942361] [2024-10-24 01:50:01,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:01,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:01,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:01,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:01,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:01,539 INFO L87 Difference]: Start difference. First operand 12266 states and 17664 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:01,938 INFO L93 Difference]: Finished difference Result 40950 states and 59126 transitions. [2024-10-24 01:50:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:50:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-10-24 01:50:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:01,978 INFO L225 Difference]: With dead ends: 40950 [2024-10-24 01:50:01,979 INFO L226 Difference]: Without dead ends: 28808 [2024-10-24 01:50:01,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:50:01,996 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 849 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:01,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 336 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:50:02,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28808 states. [2024-10-24 01:50:02,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28808 to 26406. [2024-10-24 01:50:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26406 states, 26405 states have (on average 1.4388941488354479) internal successors, (37994), 26405 states have internal predecessors, (37994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:02,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26406 states to 26406 states and 37994 transitions. [2024-10-24 01:50:02,285 INFO L78 Accepts]: Start accepts. Automaton has 26406 states and 37994 transitions. Word has length 118 [2024-10-24 01:50:02,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:02,286 INFO L471 AbstractCegarLoop]: Abstraction has 26406 states and 37994 transitions. [2024-10-24 01:50:02,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 26406 states and 37994 transitions. [2024-10-24 01:50:02,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 01:50:02,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:02,288 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 01:50:02,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 01:50:02,288 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:02,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:02,288 INFO L85 PathProgramCache]: Analyzing trace with hash -998709103, now seen corresponding path program 1 times [2024-10-24 01:50:02,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:02,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694590753] [2024-10-24 01:50:02,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:02,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:02,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:02,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694590753] [2024-10-24 01:50:02,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694590753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:02,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:02,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:50:02,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929046501] [2024-10-24 01:50:02,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:02,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:02,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:02,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:02,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:02,421 INFO L87 Difference]: Start difference. First operand 26406 states and 37994 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:02,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:02,807 INFO L93 Difference]: Finished difference Result 98970 states and 143316 transitions. [2024-10-24 01:50:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:50:02,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-10-24 01:50:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:02,900 INFO L225 Difference]: With dead ends: 98970 [2024-10-24 01:50:02,900 INFO L226 Difference]: Without dead ends: 72688 [2024-10-24 01:50:02,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:50:02,936 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 1019 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:02,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 340 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:50:02,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72688 states. [2024-10-24 01:50:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72688 to 56686. [2024-10-24 01:50:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56686 states, 56685 states have (on average 1.436958631031137) internal successors, (81454), 56685 states have internal predecessors, (81454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:04,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56686 states to 56686 states and 81454 transitions. [2024-10-24 01:50:04,046 INFO L78 Accepts]: Start accepts. Automaton has 56686 states and 81454 transitions. Word has length 118 [2024-10-24 01:50:04,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:04,047 INFO L471 AbstractCegarLoop]: Abstraction has 56686 states and 81454 transitions. [2024-10-24 01:50:04,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:04,047 INFO L276 IsEmpty]: Start isEmpty. Operand 56686 states and 81454 transitions. [2024-10-24 01:50:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 01:50:04,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:04,049 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 01:50:04,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 01:50:04,050 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:04,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash 966974359, now seen corresponding path program 1 times [2024-10-24 01:50:04,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:04,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890427608] [2024-10-24 01:50:04,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:04,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:04,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:04,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890427608] [2024-10-24 01:50:04,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890427608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:04,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:04,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:50:04,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779336410] [2024-10-24 01:50:04,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:04,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:04,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:04,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:04,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:04,375 INFO L87 Difference]: Start difference. First operand 56686 states and 81454 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:04,915 INFO L93 Difference]: Finished difference Result 128616 states and 185269 transitions. [2024-10-24 01:50:04,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:50:04,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-10-24 01:50:04,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:05,002 INFO L225 Difference]: With dead ends: 128616 [2024-10-24 01:50:05,002 INFO L226 Difference]: Without dead ends: 72054 [2024-10-24 01:50:05,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:50:05,043 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 903 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:05,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 388 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:50:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72054 states. [2024-10-24 01:50:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72054 to 60448. [2024-10-24 01:50:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60448 states, 60447 states have (on average 1.4339669462504343) internal successors, (86679), 60447 states have internal predecessors, (86679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:05,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60448 states to 60448 states and 86679 transitions. [2024-10-24 01:50:05,988 INFO L78 Accepts]: Start accepts. Automaton has 60448 states and 86679 transitions. Word has length 118 [2024-10-24 01:50:05,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:05,988 INFO L471 AbstractCegarLoop]: Abstraction has 60448 states and 86679 transitions. [2024-10-24 01:50:05,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:05,988 INFO L276 IsEmpty]: Start isEmpty. Operand 60448 states and 86679 transitions. [2024-10-24 01:50:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 01:50:06,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:06,001 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:06,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 01:50:06,002 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:06,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:06,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1387977865, now seen corresponding path program 1 times [2024-10-24 01:50:06,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:06,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736509224] [2024-10-24 01:50:06,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:06,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:06,393 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 01:50:06,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:06,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736509224] [2024-10-24 01:50:06,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736509224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:06,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:06,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:50:06,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115526142] [2024-10-24 01:50:06,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:06,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:50:06,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:06,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:50:06,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:06,395 INFO L87 Difference]: Start difference. First operand 60448 states and 86679 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:06,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:06,807 INFO L93 Difference]: Finished difference Result 116532 states and 166769 transitions. [2024-10-24 01:50:06,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:50:06,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-10-24 01:50:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:06,879 INFO L225 Difference]: With dead ends: 116532 [2024-10-24 01:50:06,879 INFO L226 Difference]: Without dead ends: 56220 [2024-10-24 01:50:06,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:06,896 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 76 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:06,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 382 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56220 states. [2024-10-24 01:50:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56220 to 54958. [2024-10-24 01:50:07,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54958 states, 54957 states have (on average 1.4202740324253507) internal successors, (78054), 54957 states have internal predecessors, (78054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:07,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54958 states to 54958 states and 78054 transitions. [2024-10-24 01:50:07,666 INFO L78 Accepts]: Start accepts. Automaton has 54958 states and 78054 transitions. Word has length 145 [2024-10-24 01:50:07,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:07,667 INFO L471 AbstractCegarLoop]: Abstraction has 54958 states and 78054 transitions. [2024-10-24 01:50:07,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:07,667 INFO L276 IsEmpty]: Start isEmpty. Operand 54958 states and 78054 transitions. [2024-10-24 01:50:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 01:50:07,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:07,678 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-24 01:50:07,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 01:50:07,678 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:07,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:07,679 INFO L85 PathProgramCache]: Analyzing trace with hash -902251044, now seen corresponding path program 1 times [2024-10-24 01:50:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:07,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355055136] [2024-10-24 01:50:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:07,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 01:50:07,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355055136] [2024-10-24 01:50:07,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355055136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:07,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:07,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:50:07,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35229763] [2024-10-24 01:50:07,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:07,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:50:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:50:07,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:07,864 INFO L87 Difference]: Start difference. First operand 54958 states and 78054 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:08,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:08,308 INFO L93 Difference]: Finished difference Result 105594 states and 149576 transitions. [2024-10-24 01:50:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:50:08,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-10-24 01:50:08,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:08,369 INFO L225 Difference]: With dead ends: 105594 [2024-10-24 01:50:08,370 INFO L226 Difference]: Without dead ends: 50760 [2024-10-24 01:50:08,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:08,408 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 69 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:08,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:08,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50760 states. [2024-10-24 01:50:08,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50760 to 49558. [2024-10-24 01:50:09,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49558 states, 49557 states have (on average 1.4055330225800593) internal successors, (69654), 49557 states have internal predecessors, (69654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:09,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49558 states to 49558 states and 69654 transitions. [2024-10-24 01:50:09,068 INFO L78 Accepts]: Start accepts. Automaton has 49558 states and 69654 transitions. Word has length 146 [2024-10-24 01:50:09,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:09,068 INFO L471 AbstractCegarLoop]: Abstraction has 49558 states and 69654 transitions. [2024-10-24 01:50:09,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 49558 states and 69654 transitions. [2024-10-24 01:50:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:50:09,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:09,075 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:09,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 01:50:09,075 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:09,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:09,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1624945508, now seen corresponding path program 1 times [2024-10-24 01:50:09,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:09,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913171132] [2024-10-24 01:50:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:09,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-24 01:50:09,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:09,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913171132] [2024-10-24 01:50:09,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913171132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:09,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:09,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:50:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062122035] [2024-10-24 01:50:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:09,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:50:09,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:50:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:09,206 INFO L87 Difference]: Start difference. First operand 49558 states and 69654 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:09,417 INFO L93 Difference]: Finished difference Result 94794 states and 132776 transitions. [2024-10-24 01:50:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:50:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 147 [2024-10-24 01:50:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:09,752 INFO L225 Difference]: With dead ends: 94794 [2024-10-24 01:50:09,752 INFO L226 Difference]: Without dead ends: 45360 [2024-10-24 01:50:09,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:09,770 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 62 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:09,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 384 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45360 states. [2024-10-24 01:50:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45360 to 44158. [2024-10-24 01:50:10,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44158 states, 44157 states have (on average 1.3871866295264623) internal successors, (61254), 44157 states have internal predecessors, (61254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:10,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44158 states to 44158 states and 61254 transitions. [2024-10-24 01:50:10,190 INFO L78 Accepts]: Start accepts. Automaton has 44158 states and 61254 transitions. Word has length 147 [2024-10-24 01:50:10,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:10,191 INFO L471 AbstractCegarLoop]: Abstraction has 44158 states and 61254 transitions. [2024-10-24 01:50:10,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:10,191 INFO L276 IsEmpty]: Start isEmpty. Operand 44158 states and 61254 transitions. [2024-10-24 01:50:10,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 01:50:10,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:10,195 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-24 01:50:10,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 01:50:10,196 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:10,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:10,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1903188371, now seen corresponding path program 1 times [2024-10-24 01:50:10,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:10,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060252443] [2024-10-24 01:50:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:10,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 01:50:10,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:10,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060252443] [2024-10-24 01:50:10,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060252443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:10,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:10,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:50:10,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302928180] [2024-10-24 01:50:10,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:10,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:50:10,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:10,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:50:10,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:10,659 INFO L87 Difference]: Start difference. First operand 44158 states and 61254 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:10,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:10,961 INFO L93 Difference]: Finished difference Result 127826 states and 176296 transitions. [2024-10-24 01:50:10,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:50:10,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 148 [2024-10-24 01:50:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:11,065 INFO L225 Difference]: With dead ends: 127826 [2024-10-24 01:50:11,065 INFO L226 Difference]: Without dead ends: 83792 [2024-10-24 01:50:11,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:11,116 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 55 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:11,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:11,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83792 states. [2024-10-24 01:50:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83792 to 78190. [2024-10-24 01:50:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78190 states, 78189 states have (on average 1.3707043190218573) internal successors, (107174), 78189 states have internal predecessors, (107174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78190 states to 78190 states and 107174 transitions. [2024-10-24 01:50:12,259 INFO L78 Accepts]: Start accepts. Automaton has 78190 states and 107174 transitions. Word has length 148 [2024-10-24 01:50:12,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:12,260 INFO L471 AbstractCegarLoop]: Abstraction has 78190 states and 107174 transitions. [2024-10-24 01:50:12,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 78190 states and 107174 transitions. [2024-10-24 01:50:12,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 01:50:12,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:12,265 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:12,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 01:50:12,265 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:12,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:12,266 INFO L85 PathProgramCache]: Analyzing trace with hash 122443609, now seen corresponding path program 1 times [2024-10-24 01:50:12,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:12,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829527224] [2024-10-24 01:50:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:12,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:13,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:13,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829527224] [2024-10-24 01:50:13,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829527224] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:50:13,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115024034] [2024-10-24 01:50:13,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:13,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:50:13,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:50:13,315 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) [2024-10-24 01:50:13,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 01:50:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:13,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-24 01:50:13,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:50:14,110 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 01:50:14,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:50:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 01:50:15,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115024034] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:50:15,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:50:15,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 9] total 23 [2024-10-24 01:50:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640861407] [2024-10-24 01:50:15,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:50:15,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 01:50:15,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:15,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 01:50:15,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-10-24 01:50:15,423 INFO L87 Difference]: Start difference. First operand 78190 states and 107174 transitions. Second operand has 23 states, 23 states have (on average 18.47826086956522) internal successors, (425), 23 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:27,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:27,769 INFO L93 Difference]: Finished difference Result 660710 states and 903228 transitions. [2024-10-24 01:50:27,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2024-10-24 01:50:27,769 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 18.47826086956522) internal successors, (425), 23 states have internal predecessors, (425), 0 states have call successors, (0), 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 149 [2024-10-24 01:50:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:29,150 INFO L225 Difference]: With dead ends: 660710 [2024-10-24 01:50:29,150 INFO L226 Difference]: Without dead ends: 588191 [2024-10-24 01:50:29,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28347 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=7137, Invalid=57125, Unknown=0, NotChecked=0, Total=64262 [2024-10-24 01:50:29,405 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 11855 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 4654 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11855 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 4885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 4654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:29,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11855 Valid, 3458 Invalid, 4885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 4654 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-24 01:50:29,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588191 states.