./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.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 2218bd3b5024885ce258db0decccc6cd77d5db224efd54b84e54987ad5abfa77 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:35:05,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:35:05,684 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:35:05,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:35:05,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:35:05,726 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:35:05,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:35:05,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:35:05,727 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:35:05,731 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:35:05,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:35:05,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:35:05,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:35:05,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:35:05,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:35:05,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:35:05,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:35:05,733 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:35:05,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:35:05,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:35:05,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:35:05,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:35:05,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:35:05,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:35:05,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:35:05,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:35:05,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:35:05,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:35:05,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:35:05,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:35:05,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:35:05,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:35:05,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:35:05,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:35:05,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:35:05,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:35:05,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:35:05,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:35:05,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:35:05,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:35:05,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:35:05,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:35:05,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2218bd3b5024885ce258db0decccc6cd77d5db224efd54b84e54987ad5abfa77 [2024-11-11 21:35:06,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:35:06,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:35:06,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:35:06,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:35:06,036 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:35:06,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-11 21:35:07,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:35:07,773 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:35:07,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-11 21:35:07,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab4bfbbba/75a2b0d4868f403f9a5a0f96b67e3eeb/FLAGa210454b4 [2024-11-11 21:35:07,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab4bfbbba/75a2b0d4868f403f9a5a0f96b67e3eeb [2024-11-11 21:35:07,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:35:07,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:35:07,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:35:07,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:35:07,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:35:07,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:35:07" (1/1) ... [2024-11-11 21:35:07,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa979a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:07, skipping insertion in model container [2024-11-11 21:35:07,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:35:07" (1/1) ... [2024-11-11 21:35:07,871 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:35:08,125 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-11-11 21:35:08,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:35:08,211 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:35:08,253 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-11-11 21:35:08,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:35:08,333 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:35:08,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08 WrapperNode [2024-11-11 21:35:08,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:35:08,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:35:08,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:35:08,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:35:08,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,406 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 723 [2024-11-11 21:35:08,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:35:08,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:35:08,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:35:08,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:35:08,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,446 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 21:35:08,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:35:08,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:35:08,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:35:08,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:35:08,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (1/1) ... [2024-11-11 21:35:08,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:35:08,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:35:08,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 21:35:08,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 21:35:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:35:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:35:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:35:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:35:08,728 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:35:08,730 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:35:09,495 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-11 21:35:09,496 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:35:09,515 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:35:09,517 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 21:35:09,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:35:09 BoogieIcfgContainer [2024-11-11 21:35:09,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:35:09,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:35:09,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:35:09,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:35:09,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:35:07" (1/3) ... [2024-11-11 21:35:09,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59445706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:35:09, skipping insertion in model container [2024-11-11 21:35:09,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:35:08" (2/3) ... [2024-11-11 21:35:09,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59445706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:35:09, skipping insertion in model container [2024-11-11 21:35:09,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:35:09" (3/3) ... [2024-11-11 21:35:09,527 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-11 21:35:09,544 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:35:09,544 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:35:09,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:35:09,613 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;@718bd2f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:35:09,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:35:09,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 177 states have (on average 1.7175141242937852) internal successors, (304), 178 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-11 21:35:09,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:09,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:09,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:09,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash -113151096, now seen corresponding path program 1 times [2024-11-11 21:35:09,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:09,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605645694] [2024-11-11 21:35:09,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:09,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:10,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:10,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605645694] [2024-11-11 21:35:10,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605645694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:10,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:10,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:10,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704264824] [2024-11-11 21:35:10,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:10,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:35:10,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:10,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:35:10,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:35:10,271 INFO L87 Difference]: Start difference. First operand has 179 states, 177 states have (on average 1.7175141242937852) internal successors, (304), 178 states have internal predecessors, (304), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:10,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:10,492 INFO L93 Difference]: Finished difference Result 639 states and 1034 transitions. [2024-11-11 21:35:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:35:10,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-11 21:35:10,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:10,512 INFO L225 Difference]: With dead ends: 639 [2024-11-11 21:35:10,513 INFO L226 Difference]: Without dead ends: 540 [2024-11-11 21:35:10,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:35:10,521 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 1598 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:10,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 1127 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:35:10,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-11 21:35:10,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 274. [2024-11-11 21:35:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.5128205128205128) internal successors, (413), 273 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 413 transitions. [2024-11-11 21:35:10,587 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 413 transitions. Word has length 64 [2024-11-11 21:35:10,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:10,588 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 413 transitions. [2024-11-11 21:35:10,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:10,588 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 413 transitions. [2024-11-11 21:35:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 21:35:10,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:10,603 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:10,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:35:10,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:10,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash 507394196, now seen corresponding path program 1 times [2024-11-11 21:35:10,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:10,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606878352] [2024-11-11 21:35:10,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:10,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:10,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:10,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606878352] [2024-11-11 21:35:10,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606878352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:10,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:10,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:10,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148037690] [2024-11-11 21:35:10,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:10,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:35:10,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:10,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:35:10,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:35:10,898 INFO L87 Difference]: Start difference. First operand 274 states and 413 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:11,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:11,060 INFO L93 Difference]: Finished difference Result 1012 states and 1565 transitions. [2024-11-11 21:35:11,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:35:11,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-11 21:35:11,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:11,066 INFO L225 Difference]: With dead ends: 1012 [2024-11-11 21:35:11,066 INFO L226 Difference]: Without dead ends: 800 [2024-11-11 21:35:11,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:35:11,069 INFO L435 NwaCegarLoop]: 391 mSDtfsCounter, 1012 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:11,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 895 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:35:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-11 21:35:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 794. [2024-11-11 21:35:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.5359394703656999) internal successors, (1218), 793 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:11,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1218 transitions. [2024-11-11 21:35:11,115 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1218 transitions. Word has length 65 [2024-11-11 21:35:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:11,116 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1218 transitions. [2024-11-11 21:35:11,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1218 transitions. [2024-11-11 21:35:11,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 21:35:11,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:11,119 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:11,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:35:11,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:11,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:11,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1175932082, now seen corresponding path program 1 times [2024-11-11 21:35:11,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:11,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488015211] [2024-11-11 21:35:11,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:11,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:11,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488015211] [2024-11-11 21:35:11,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488015211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:11,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:11,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:35:11,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677230310] [2024-11-11 21:35:11,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:11,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:35:11,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:11,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:35:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:35:11,315 INFO L87 Difference]: Start difference. First operand 794 states and 1218 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:11,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:11,561 INFO L93 Difference]: Finished difference Result 2126 states and 3304 transitions. [2024-11-11 21:35:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:35:11,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-11 21:35:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:11,569 INFO L225 Difference]: With dead ends: 2126 [2024-11-11 21:35:11,569 INFO L226 Difference]: Without dead ends: 1382 [2024-11-11 21:35:11,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:11,574 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1001 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:11,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 246 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:35:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-11-11 21:35:11,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2024-11-11 21:35:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.5453226976069616) internal successors, (2131), 1379 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:11,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2131 transitions. [2024-11-11 21:35:11,608 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2131 transitions. Word has length 66 [2024-11-11 21:35:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:11,609 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2131 transitions. [2024-11-11 21:35:11,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2131 transitions. [2024-11-11 21:35:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 21:35:11,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:11,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:11,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:35:11,616 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:11,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash 195420080, now seen corresponding path program 1 times [2024-11-11 21:35:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:11,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30821629] [2024-11-11 21:35:11,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:11,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:11,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:11,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:11,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30821629] [2024-11-11 21:35:11,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30821629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:11,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:11,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:35:11,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570411951] [2024-11-11 21:35:11,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:11,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:35:11,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:11,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:35:11,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:35:11,766 INFO L87 Difference]: Start difference. First operand 1380 states and 2131 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:11,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:11,990 INFO L93 Difference]: Finished difference Result 3712 states and 5789 transitions. [2024-11-11 21:35:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:35:11,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-11 21:35:11,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:12,001 INFO L225 Difference]: With dead ends: 3712 [2024-11-11 21:35:12,001 INFO L226 Difference]: Without dead ends: 2432 [2024-11-11 21:35:12,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:12,005 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 927 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:12,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 252 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:35:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-11-11 21:35:12,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2430. [2024-11-11 21:35:12,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2429 states have (on average 1.550020584602717) internal successors, (3765), 2429 states have internal predecessors, (3765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:12,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3765 transitions. [2024-11-11 21:35:12,085 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3765 transitions. Word has length 66 [2024-11-11 21:35:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:12,085 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3765 transitions. [2024-11-11 21:35:12,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:12,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3765 transitions. [2024-11-11 21:35:12,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 21:35:12,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:12,088 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:12,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:35:12,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:12,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:12,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2140991135, now seen corresponding path program 1 times [2024-11-11 21:35:12,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:12,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116099786] [2024-11-11 21:35:12,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:12,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:12,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:12,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116099786] [2024-11-11 21:35:12,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116099786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:12,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:12,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:35:12,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415696594] [2024-11-11 21:35:12,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:12,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:35:12,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:12,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:35:12,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:35:12,234 INFO L87 Difference]: Start difference. First operand 2430 states and 3765 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:12,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:12,463 INFO L93 Difference]: Finished difference Result 6933 states and 10800 transitions. [2024-11-11 21:35:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:35:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-11 21:35:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:12,481 INFO L225 Difference]: With dead ends: 6933 [2024-11-11 21:35:12,481 INFO L226 Difference]: Without dead ends: 4576 [2024-11-11 21:35:12,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:12,490 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 953 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:12,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 250 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:35:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4576 states. [2024-11-11 21:35:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4576 to 4574. [2024-11-11 21:35:12,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4573 states have (on average 1.5484364749617319) internal successors, (7081), 4573 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 7081 transitions. [2024-11-11 21:35:12,586 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 7081 transitions. Word has length 66 [2024-11-11 21:35:12,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:12,587 INFO L471 AbstractCegarLoop]: Abstraction has 4574 states and 7081 transitions. [2024-11-11 21:35:12,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 7081 transitions. [2024-11-11 21:35:12,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 21:35:12,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:12,589 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:12,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:35:12,590 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:12,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:12,591 INFO L85 PathProgramCache]: Analyzing trace with hash -472666691, now seen corresponding path program 1 times [2024-11-11 21:35:12,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:12,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538828588] [2024-11-11 21:35:12,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:12,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:12,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:12,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538828588] [2024-11-11 21:35:12,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538828588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:12,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:12,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:35:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023876484] [2024-11-11 21:35:12,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:12,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:35:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:12,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:35:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:35:12,750 INFO L87 Difference]: Start difference. First operand 4574 states and 7081 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:13,023 INFO L93 Difference]: Finished difference Result 13472 states and 20916 transitions. [2024-11-11 21:35:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:35:13,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-11 21:35:13,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:13,057 INFO L225 Difference]: With dead ends: 13472 [2024-11-11 21:35:13,057 INFO L226 Difference]: Without dead ends: 8932 [2024-11-11 21:35:13,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:13,066 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1013 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:13,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 244 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:35:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8932 states. [2024-11-11 21:35:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8932 to 8930. [2024-11-11 21:35:13,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8929 states have (on average 1.540822040542054) internal successors, (13758), 8929 states have internal predecessors, (13758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 13758 transitions. [2024-11-11 21:35:13,308 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 13758 transitions. Word has length 66 [2024-11-11 21:35:13,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:13,308 INFO L471 AbstractCegarLoop]: Abstraction has 8930 states and 13758 transitions. [2024-11-11 21:35:13,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 13758 transitions. [2024-11-11 21:35:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 21:35:13,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:13,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:13,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:35:13,321 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:13,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:13,322 INFO L85 PathProgramCache]: Analyzing trace with hash 545251456, now seen corresponding path program 1 times [2024-11-11 21:35:13,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:13,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300315610] [2024-11-11 21:35:13,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:13,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:13,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:13,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300315610] [2024-11-11 21:35:13,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300315610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:13,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:13,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:35:13,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637637605] [2024-11-11 21:35:13,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:13,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:35:13,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:13,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:35:13,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:35:13,618 INFO L87 Difference]: Start difference. First operand 8930 states and 13758 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:13,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:13,703 INFO L93 Difference]: Finished difference Result 9188 states and 14143 transitions. [2024-11-11 21:35:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:35:13,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-11 21:35:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:13,745 INFO L225 Difference]: With dead ends: 9188 [2024-11-11 21:35:13,746 INFO L226 Difference]: Without dead ends: 9186 [2024-11-11 21:35:13,750 INFO L434 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 [2024-11-11 21:35:13,751 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 0 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:13,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 970 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:35:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9186 states. [2024-11-11 21:35:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9186 to 9186. [2024-11-11 21:35:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9185 states have (on average 1.5257485029940119) internal successors, (14014), 9185 states have internal predecessors, (14014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:13,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 14014 transitions. [2024-11-11 21:35:13,899 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 14014 transitions. Word has length 67 [2024-11-11 21:35:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:13,900 INFO L471 AbstractCegarLoop]: Abstraction has 9186 states and 14014 transitions. [2024-11-11 21:35:13,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 14014 transitions. [2024-11-11 21:35:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-11 21:35:13,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:13,903 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:13,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:35:13,903 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:13,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:13,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2333062, now seen corresponding path program 1 times [2024-11-11 21:35:13,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:13,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195724493] [2024-11-11 21:35:13,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:13,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:14,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:14,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195724493] [2024-11-11 21:35:14,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195724493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:14,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:14,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:35:14,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43499914] [2024-11-11 21:35:14,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:14,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:35:14,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:14,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:35:14,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:35:14,346 INFO L87 Difference]: Start difference. First operand 9186 states and 14014 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:15,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:15,087 INFO L93 Difference]: Finished difference Result 19048 states and 28833 transitions. [2024-11-11 21:35:15,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:35:15,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-11 21:35:15,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:15,115 INFO L225 Difference]: With dead ends: 19048 [2024-11-11 21:35:15,115 INFO L226 Difference]: Without dead ends: 13234 [2024-11-11 21:35:15,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-11 21:35:15,128 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1606 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:15,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 778 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 21:35:15,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13234 states. [2024-11-11 21:35:15,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13234 to 9319. [2024-11-11 21:35:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9319 states, 9318 states have (on average 1.5227516634470917) internal successors, (14189), 9318 states have internal predecessors, (14189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9319 states to 9319 states and 14189 transitions. [2024-11-11 21:35:15,353 INFO L78 Accepts]: Start accepts. Automaton has 9319 states and 14189 transitions. Word has length 68 [2024-11-11 21:35:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:15,354 INFO L471 AbstractCegarLoop]: Abstraction has 9319 states and 14189 transitions. [2024-11-11 21:35:15,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 9319 states and 14189 transitions. [2024-11-11 21:35:15,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-11 21:35:15,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:15,357 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:15,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:35:15,358 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:15,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:15,359 INFO L85 PathProgramCache]: Analyzing trace with hash -371480250, now seen corresponding path program 1 times [2024-11-11 21:35:15,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:15,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639151732] [2024-11-11 21:35:15,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:15,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:15,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:15,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639151732] [2024-11-11 21:35:15,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639151732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:15,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:15,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:35:15,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740136941] [2024-11-11 21:35:15,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:15,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:35:15,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:15,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:35:15,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:35:15,754 INFO L87 Difference]: Start difference. First operand 9319 states and 14189 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:16,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:16,393 INFO L93 Difference]: Finished difference Result 15187 states and 22976 transitions. [2024-11-11 21:35:16,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 21:35:16,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-11 21:35:16,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:16,420 INFO L225 Difference]: With dead ends: 15187 [2024-11-11 21:35:16,421 INFO L226 Difference]: Without dead ends: 13880 [2024-11-11 21:35:16,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-11 21:35:16,430 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1079 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:16,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 922 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:35:16,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13880 states. [2024-11-11 21:35:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13880 to 9319. [2024-11-11 21:35:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9319 states, 9318 states have (on average 1.522537025112685) internal successors, (14187), 9318 states have internal predecessors, (14187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:16,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9319 states to 9319 states and 14187 transitions. [2024-11-11 21:35:16,629 INFO L78 Accepts]: Start accepts. Automaton has 9319 states and 14187 transitions. Word has length 68 [2024-11-11 21:35:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:16,629 INFO L471 AbstractCegarLoop]: Abstraction has 9319 states and 14187 transitions. [2024-11-11 21:35:16,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 9319 states and 14187 transitions. [2024-11-11 21:35:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-11 21:35:16,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:16,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:16,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:35:16,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:16,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:16,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2100624742, now seen corresponding path program 1 times [2024-11-11 21:35:16,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:16,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602572956] [2024-11-11 21:35:16,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:16,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:17,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:17,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602572956] [2024-11-11 21:35:17,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602572956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:17,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:17,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:35:17,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187692031] [2024-11-11 21:35:17,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:17,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:35:17,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:17,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:35:17,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:35:17,027 INFO L87 Difference]: Start difference. First operand 9319 states and 14187 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:17,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:17,699 INFO L93 Difference]: Finished difference Result 15879 states and 23973 transitions. [2024-11-11 21:35:17,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:35:17,700 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-11 21:35:17,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:17,730 INFO L225 Difference]: With dead ends: 15879 [2024-11-11 21:35:17,730 INFO L226 Difference]: Without dead ends: 12302 [2024-11-11 21:35:17,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:35:17,740 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1044 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:17,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 844 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:35:17,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12302 states. [2024-11-11 21:35:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12302 to 9542. [2024-11-11 21:35:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9542 states, 9541 states have (on average 1.5182894874751074) internal successors, (14486), 9541 states have internal predecessors, (14486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9542 states to 9542 states and 14486 transitions. [2024-11-11 21:35:17,988 INFO L78 Accepts]: Start accepts. Automaton has 9542 states and 14486 transitions. Word has length 68 [2024-11-11 21:35:17,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:17,988 INFO L471 AbstractCegarLoop]: Abstraction has 9542 states and 14486 transitions. [2024-11-11 21:35:17,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9542 states and 14486 transitions. [2024-11-11 21:35:17,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-11 21:35:17,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:17,992 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:17,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:35:17,992 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:17,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:17,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1059619418, now seen corresponding path program 1 times [2024-11-11 21:35:17,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:17,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881787653] [2024-11-11 21:35:17,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:17,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:18,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:18,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881787653] [2024-11-11 21:35:18,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881787653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:18,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:18,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:35:18,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619711079] [2024-11-11 21:35:18,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:18,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:35:18,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:18,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:35:18,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:35:18,315 INFO L87 Difference]: Start difference. First operand 9542 states and 14486 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:18,986 INFO L93 Difference]: Finished difference Result 23505 states and 35481 transitions. [2024-11-11 21:35:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:35:18,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-11 21:35:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:19,013 INFO L225 Difference]: With dead ends: 23505 [2024-11-11 21:35:19,014 INFO L226 Difference]: Without dead ends: 14646 [2024-11-11 21:35:19,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:35:19,030 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1469 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:19,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 848 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:35:19,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14646 states. [2024-11-11 21:35:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14646 to 9676. [2024-11-11 21:35:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9676 states, 9675 states have (on average 1.5121447028423773) internal successors, (14630), 9675 states have internal predecessors, (14630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9676 states to 9676 states and 14630 transitions. [2024-11-11 21:35:19,253 INFO L78 Accepts]: Start accepts. Automaton has 9676 states and 14630 transitions. Word has length 68 [2024-11-11 21:35:19,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:19,254 INFO L471 AbstractCegarLoop]: Abstraction has 9676 states and 14630 transitions. [2024-11-11 21:35:19,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 9676 states and 14630 transitions. [2024-11-11 21:35:19,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-11 21:35:19,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:19,258 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:19,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:35:19,258 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:19,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:19,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1047773961, now seen corresponding path program 1 times [2024-11-11 21:35:19,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:19,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012237140] [2024-11-11 21:35:19,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:19,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:19,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:19,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012237140] [2024-11-11 21:35:19,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012237140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:19,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:19,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:35:19,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838896857] [2024-11-11 21:35:19,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:19,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:35:19,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:19,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:35:19,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:35:19,414 INFO L87 Difference]: Start difference. First operand 9676 states and 14630 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:19,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:19,511 INFO L93 Difference]: Finished difference Result 25520 states and 38764 transitions. [2024-11-11 21:35:19,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:35:19,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-11 21:35:19,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:19,540 INFO L225 Difference]: With dead ends: 25520 [2024-11-11 21:35:19,540 INFO L226 Difference]: Without dead ends: 16942 [2024-11-11 21:35:19,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:35:19,643 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 170 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:19,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 605 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:19,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16942 states. [2024-11-11 21:35:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16942 to 16820. [2024-11-11 21:35:19,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16820 states, 16819 states have (on average 1.5012783161900232) internal successors, (25250), 16819 states have internal predecessors, (25250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16820 states to 16820 states and 25250 transitions. [2024-11-11 21:35:19,840 INFO L78 Accepts]: Start accepts. Automaton has 16820 states and 25250 transitions. Word has length 69 [2024-11-11 21:35:19,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:19,840 INFO L471 AbstractCegarLoop]: Abstraction has 16820 states and 25250 transitions. [2024-11-11 21:35:19,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 16820 states and 25250 transitions. [2024-11-11 21:35:19,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-11 21:35:19,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:19,843 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:19,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 21:35:19,844 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:19,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:19,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1802228217, now seen corresponding path program 1 times [2024-11-11 21:35:19,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:19,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849135363] [2024-11-11 21:35:19,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:19,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:19,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:19,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849135363] [2024-11-11 21:35:19,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849135363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:19,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:19,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:35:19,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824900614] [2024-11-11 21:35:19,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:19,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:35:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:19,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:35:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:19,900 INFO L87 Difference]: Start difference. First operand 16820 states and 25250 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:19,989 INFO L93 Difference]: Finished difference Result 29184 states and 43867 transitions. [2024-11-11 21:35:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:35:19,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-11 21:35:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:20,127 INFO L225 Difference]: With dead ends: 29184 [2024-11-11 21:35:20,127 INFO L226 Difference]: Without dead ends: 20218 [2024-11-11 21:35:20,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:20,140 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 156 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:20,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 480 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:20,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20218 states. [2024-11-11 21:35:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20218 to 19984. [2024-11-11 21:35:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19984 states, 19983 states have (on average 1.4800580493419406) internal successors, (29576), 19983 states have internal predecessors, (29576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:20,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19984 states to 19984 states and 29576 transitions. [2024-11-11 21:35:20,609 INFO L78 Accepts]: Start accepts. Automaton has 19984 states and 29576 transitions. Word has length 69 [2024-11-11 21:35:20,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:20,610 INFO L471 AbstractCegarLoop]: Abstraction has 19984 states and 29576 transitions. [2024-11-11 21:35:20,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:20,610 INFO L276 IsEmpty]: Start isEmpty. Operand 19984 states and 29576 transitions. [2024-11-11 21:35:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-11 21:35:20,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:20,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:20,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 21:35:20,614 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:20,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1041130329, now seen corresponding path program 1 times [2024-11-11 21:35:20,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228487043] [2024-11-11 21:35:20,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:20,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:20,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:20,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228487043] [2024-11-11 21:35:20,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228487043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:20,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:20,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:35:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106338734] [2024-11-11 21:35:20,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:20,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:35:20,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:20,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:35:20,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:20,687 INFO L87 Difference]: Start difference. First operand 19984 states and 29576 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:20,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:20,827 INFO L93 Difference]: Finished difference Result 50136 states and 74406 transitions. [2024-11-11 21:35:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:35:20,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-11 21:35:20,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:20,881 INFO L225 Difference]: With dead ends: 50136 [2024-11-11 21:35:20,881 INFO L226 Difference]: Without dead ends: 33658 [2024-11-11 21:35:20,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:20,910 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 175 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:20,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 466 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:20,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33658 states. [2024-11-11 21:35:21,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33658 to 33592. [2024-11-11 21:35:21,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33592 states, 33591 states have (on average 1.4715251108927987) internal successors, (49430), 33591 states have internal predecessors, (49430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:21,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33592 states to 33592 states and 49430 transitions. [2024-11-11 21:35:21,595 INFO L78 Accepts]: Start accepts. Automaton has 33592 states and 49430 transitions. Word has length 69 [2024-11-11 21:35:21,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:21,595 INFO L471 AbstractCegarLoop]: Abstraction has 33592 states and 49430 transitions. [2024-11-11 21:35:21,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 33592 states and 49430 transitions. [2024-11-11 21:35:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-11 21:35:21,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:21,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:21,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 21:35:21,602 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:21,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:21,603 INFO L85 PathProgramCache]: Analyzing trace with hash -933815240, now seen corresponding path program 1 times [2024-11-11 21:35:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:21,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418709085] [2024-11-11 21:35:21,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:21,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:21,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:21,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418709085] [2024-11-11 21:35:21,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418709085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:21,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:21,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:35:21,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895826711] [2024-11-11 21:35:21,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:21,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:35:21,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:21,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:35:21,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:21,674 INFO L87 Difference]: Start difference. First operand 33592 states and 49430 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:21,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:21,804 INFO L93 Difference]: Finished difference Result 46445 states and 68037 transitions. [2024-11-11 21:35:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:35:21,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-11 21:35:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:22,023 INFO L225 Difference]: With dead ends: 46445 [2024-11-11 21:35:22,028 INFO L226 Difference]: Without dead ends: 34325 [2024-11-11 21:35:22,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:22,068 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 144 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:22,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 466 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:22,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34325 states. [2024-11-11 21:35:22,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34325 to 30847. [2024-11-11 21:35:22,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30847 states, 30846 states have (on average 1.4431692926149258) internal successors, (44516), 30846 states have internal predecessors, (44516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30847 states to 30847 states and 44516 transitions. [2024-11-11 21:35:22,610 INFO L78 Accepts]: Start accepts. Automaton has 30847 states and 44516 transitions. Word has length 69 [2024-11-11 21:35:22,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:22,611 INFO L471 AbstractCegarLoop]: Abstraction has 30847 states and 44516 transitions. [2024-11-11 21:35:22,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 30847 states and 44516 transitions. [2024-11-11 21:35:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-11 21:35:22,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:22,619 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:22,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 21:35:22,620 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:22,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash 804290264, now seen corresponding path program 1 times [2024-11-11 21:35:22,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:22,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762491503] [2024-11-11 21:35:22,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:22,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:22,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:22,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762491503] [2024-11-11 21:35:22,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762491503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:22,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:22,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:35:22,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200804878] [2024-11-11 21:35:22,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:22,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:35:22,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:22,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:35:22,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:22,691 INFO L87 Difference]: Start difference. First operand 30847 states and 44516 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:23,027 INFO L93 Difference]: Finished difference Result 60636 states and 87270 transitions. [2024-11-11 21:35:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:35:23,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-11 21:35:23,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:23,070 INFO L225 Difference]: With dead ends: 60636 [2024-11-11 21:35:23,070 INFO L226 Difference]: Without dead ends: 33744 [2024-11-11 21:35:23,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:23,093 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 162 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:23,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 556 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:23,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33744 states. [2024-11-11 21:35:23,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33744 to 33426. [2024-11-11 21:35:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33426 states, 33425 states have (on average 1.4062228870605833) internal successors, (47003), 33425 states have internal predecessors, (47003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:23,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33426 states to 33426 states and 47003 transitions. [2024-11-11 21:35:23,678 INFO L78 Accepts]: Start accepts. Automaton has 33426 states and 47003 transitions. Word has length 69 [2024-11-11 21:35:23,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:23,679 INFO L471 AbstractCegarLoop]: Abstraction has 33426 states and 47003 transitions. [2024-11-11 21:35:23,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:23,679 INFO L276 IsEmpty]: Start isEmpty. Operand 33426 states and 47003 transitions. [2024-11-11 21:35:23,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-11 21:35:23,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:23,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:23,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 21:35:23,686 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:23,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:23,688 INFO L85 PathProgramCache]: Analyzing trace with hash -77781245, now seen corresponding path program 1 times [2024-11-11 21:35:23,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:23,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485585854] [2024-11-11 21:35:23,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:23,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:23,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:23,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485585854] [2024-11-11 21:35:23,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485585854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:23,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:23,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:23,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055441952] [2024-11-11 21:35:23,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:23,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:35:23,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:23,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:35:23,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:35:23,835 INFO L87 Difference]: Start difference. First operand 33426 states and 47003 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:24,147 INFO L93 Difference]: Finished difference Result 69852 states and 99129 transitions. [2024-11-11 21:35:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:35:24,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-11 21:35:24,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:24,223 INFO L225 Difference]: With dead ends: 69852 [2024-11-11 21:35:24,223 INFO L226 Difference]: Without dead ends: 56383 [2024-11-11 21:35:24,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:35:24,257 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 1088 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:24,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1153 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:35:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56383 states. [2024-11-11 21:35:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56383 to 45616. [2024-11-11 21:35:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45616 states, 45615 states have (on average 1.4066863970185246) internal successors, (64166), 45615 states have internal predecessors, (64166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45616 states to 45616 states and 64166 transitions. [2024-11-11 21:35:25,030 INFO L78 Accepts]: Start accepts. Automaton has 45616 states and 64166 transitions. Word has length 70 [2024-11-11 21:35:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:25,030 INFO L471 AbstractCegarLoop]: Abstraction has 45616 states and 64166 transitions. [2024-11-11 21:35:25,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:25,031 INFO L276 IsEmpty]: Start isEmpty. Operand 45616 states and 64166 transitions. [2024-11-11 21:35:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-11 21:35:25,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:25,035 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:25,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 21:35:25,035 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:25,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1497723701, now seen corresponding path program 1 times [2024-11-11 21:35:25,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:25,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146013200] [2024-11-11 21:35:25,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:25,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:25,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:25,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146013200] [2024-11-11 21:35:25,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146013200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:25,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:25,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:25,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417837336] [2024-11-11 21:35:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:25,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:35:25,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:25,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:35:25,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:35:25,144 INFO L87 Difference]: Start difference. First operand 45616 states and 64166 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:25,610 INFO L93 Difference]: Finished difference Result 69167 states and 97864 transitions. [2024-11-11 21:35:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:35:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-11 21:35:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:25,690 INFO L225 Difference]: With dead ends: 69167 [2024-11-11 21:35:25,690 INFO L226 Difference]: Without dead ends: 65178 [2024-11-11 21:35:25,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:35:25,708 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 1111 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:25,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 1217 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:35:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65178 states. [2024-11-11 21:35:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65178 to 49543. [2024-11-11 21:35:26,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49543 states, 49542 states have (on average 1.4070283799604375) internal successors, (69707), 49542 states have internal predecessors, (69707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49543 states to 49543 states and 69707 transitions. [2024-11-11 21:35:26,566 INFO L78 Accepts]: Start accepts. Automaton has 49543 states and 69707 transitions. Word has length 70 [2024-11-11 21:35:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:26,566 INFO L471 AbstractCegarLoop]: Abstraction has 49543 states and 69707 transitions. [2024-11-11 21:35:26,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:26,567 INFO L276 IsEmpty]: Start isEmpty. Operand 49543 states and 69707 transitions. [2024-11-11 21:35:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-11 21:35:26,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:26,570 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:26,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 21:35:26,570 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:26,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1024658010, now seen corresponding path program 1 times [2024-11-11 21:35:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:26,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586754470] [2024-11-11 21:35:26,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:26,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:26,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:26,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586754470] [2024-11-11 21:35:26,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586754470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:26,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:26,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:26,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000656285] [2024-11-11 21:35:26,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:26,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:35:26,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:26,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:35:26,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:35:26,716 INFO L87 Difference]: Start difference. First operand 49543 states and 69707 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:27,353 INFO L93 Difference]: Finished difference Result 77829 states and 110164 transitions. [2024-11-11 21:35:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:35:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-11 21:35:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:27,505 INFO L225 Difference]: With dead ends: 77829 [2024-11-11 21:35:27,505 INFO L226 Difference]: Without dead ends: 69004 [2024-11-11 21:35:27,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:35:27,524 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 1037 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:27,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1343 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:35:27,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69004 states. [2024-11-11 21:35:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69004 to 55126. [2024-11-11 21:35:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55126 states, 55125 states have (on average 1.409015873015873) internal successors, (77672), 55125 states have internal predecessors, (77672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55126 states to 55126 states and 77672 transitions. [2024-11-11 21:35:28,278 INFO L78 Accepts]: Start accepts. Automaton has 55126 states and 77672 transitions. Word has length 70 [2024-11-11 21:35:28,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:28,278 INFO L471 AbstractCegarLoop]: Abstraction has 55126 states and 77672 transitions. [2024-11-11 21:35:28,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:28,278 INFO L276 IsEmpty]: Start isEmpty. Operand 55126 states and 77672 transitions. [2024-11-11 21:35:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-11 21:35:28,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:28,281 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:28,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 21:35:28,281 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:28,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:28,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1354981296, now seen corresponding path program 1 times [2024-11-11 21:35:28,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:28,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706084769] [2024-11-11 21:35:28,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:28,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:28,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:28,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:28,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706084769] [2024-11-11 21:35:28,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706084769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:28,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:28,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:28,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595206334] [2024-11-11 21:35:28,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:28,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:35:28,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:28,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:35:28,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:35:28,390 INFO L87 Difference]: Start difference. First operand 55126 states and 77672 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:28,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:28,748 INFO L93 Difference]: Finished difference Result 91888 states and 130212 transitions. [2024-11-11 21:35:28,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:35:28,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-11 21:35:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:28,876 INFO L225 Difference]: With dead ends: 91888 [2024-11-11 21:35:28,876 INFO L226 Difference]: Without dead ends: 79192 [2024-11-11 21:35:28,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:35:28,917 INFO L435 NwaCegarLoop]: 400 mSDtfsCounter, 1094 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:28,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1316 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:35:28,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79192 states. [2024-11-11 21:35:30,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79192 to 61427. [2024-11-11 21:35:30,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61427 states, 61426 states have (on average 1.4104613681502947) internal successors, (86639), 61426 states have internal predecessors, (86639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61427 states to 61427 states and 86639 transitions. [2024-11-11 21:35:30,351 INFO L78 Accepts]: Start accepts. Automaton has 61427 states and 86639 transitions. Word has length 70 [2024-11-11 21:35:30,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:30,351 INFO L471 AbstractCegarLoop]: Abstraction has 61427 states and 86639 transitions. [2024-11-11 21:35:30,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 61427 states and 86639 transitions. [2024-11-11 21:35:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-11 21:35:30,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:30,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:30,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 21:35:30,358 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:30,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash 143463778, now seen corresponding path program 1 times [2024-11-11 21:35:30,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:30,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274010383] [2024-11-11 21:35:30,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:30,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:30,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274010383] [2024-11-11 21:35:30,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274010383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:30,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:30,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880818048] [2024-11-11 21:35:30,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:30,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:35:30,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:35:30,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:30,528 INFO L87 Difference]: Start difference. First operand 61427 states and 86639 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:31,465 INFO L93 Difference]: Finished difference Result 182670 states and 256551 transitions. [2024-11-11 21:35:31,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:35:31,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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 [2024-11-11 21:35:31,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:31,695 INFO L225 Difference]: With dead ends: 182670 [2024-11-11 21:35:31,696 INFO L226 Difference]: Without dead ends: 160212 [2024-11-11 21:35:31,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:35:31,765 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 1773 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:31,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 470 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:35:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160212 states. [2024-11-11 21:35:33,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160212 to 61531. [2024-11-11 21:35:33,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61531 states, 61530 states have (on average 1.4101088899723713) internal successors, (86764), 61530 states have internal predecessors, (86764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:33,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61531 states to 61531 states and 86764 transitions. [2024-11-11 21:35:33,736 INFO L78 Accepts]: Start accepts. Automaton has 61531 states and 86764 transitions. Word has length 75 [2024-11-11 21:35:33,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:33,736 INFO L471 AbstractCegarLoop]: Abstraction has 61531 states and 86764 transitions. [2024-11-11 21:35:33,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 61531 states and 86764 transitions. [2024-11-11 21:35:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-11 21:35:33,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:33,742 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:33,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 21:35:33,743 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:33,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:33,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1189070444, now seen corresponding path program 1 times [2024-11-11 21:35:33,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:33,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016466851] [2024-11-11 21:35:33,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:33,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:33,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:33,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016466851] [2024-11-11 21:35:33,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016466851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:33,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:33,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:33,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235428843] [2024-11-11 21:35:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:33,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:35:33,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:33,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:35:33,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:33,859 INFO L87 Difference]: Start difference. First operand 61531 states and 86764 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:34,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:34,579 INFO L93 Difference]: Finished difference Result 182293 states and 254772 transitions. [2024-11-11 21:35:34,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:35:34,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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 [2024-11-11 21:35:34,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:34,813 INFO L225 Difference]: With dead ends: 182293 [2024-11-11 21:35:34,814 INFO L226 Difference]: Without dead ends: 159858 [2024-11-11 21:35:34,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:35:34,877 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 1546 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:34,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 475 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:35:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159858 states. [2024-11-11 21:35:36,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159858 to 61713. [2024-11-11 21:35:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61713 states, 61712 states have (on average 1.4094503500129634) internal successors, (86980), 61712 states have internal predecessors, (86980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61713 states to 61713 states and 86980 transitions. [2024-11-11 21:35:36,853 INFO L78 Accepts]: Start accepts. Automaton has 61713 states and 86980 transitions. Word has length 75 [2024-11-11 21:35:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:36,854 INFO L471 AbstractCegarLoop]: Abstraction has 61713 states and 86980 transitions. [2024-11-11 21:35:36,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 61713 states and 86980 transitions. [2024-11-11 21:35:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-11 21:35:36,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:36,859 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:36,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 21:35:36,859 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:36,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:36,860 INFO L85 PathProgramCache]: Analyzing trace with hash -95030964, now seen corresponding path program 1 times [2024-11-11 21:35:36,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:36,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147319074] [2024-11-11 21:35:36,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:36,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:36,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:36,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147319074] [2024-11-11 21:35:36,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147319074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:36,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:36,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:36,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497880666] [2024-11-11 21:35:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:36,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:35:36,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:36,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:35:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:36,995 INFO L87 Difference]: Start difference. First operand 61713 states and 86980 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:37,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:37,711 INFO L93 Difference]: Finished difference Result 149889 states and 209963 transitions. [2024-11-11 21:35:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:35:37,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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 [2024-11-11 21:35:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:37,887 INFO L225 Difference]: With dead ends: 149889 [2024-11-11 21:35:37,887 INFO L226 Difference]: Without dead ends: 116217 [2024-11-11 21:35:37,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:35:37,948 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 1261 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:37,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 396 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:35:38,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116217 states. [2024-11-11 21:35:39,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116217 to 61763. [2024-11-11 21:35:39,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61763 states, 61762 states have (on average 1.4092807875392637) internal successors, (87040), 61762 states have internal predecessors, (87040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61763 states to 61763 states and 87040 transitions. [2024-11-11 21:35:39,456 INFO L78 Accepts]: Start accepts. Automaton has 61763 states and 87040 transitions. Word has length 75 [2024-11-11 21:35:39,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:39,456 INFO L471 AbstractCegarLoop]: Abstraction has 61763 states and 87040 transitions. [2024-11-11 21:35:39,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 61763 states and 87040 transitions. [2024-11-11 21:35:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-11 21:35:39,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:39,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:39,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 21:35:39,461 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:39,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2062889360, now seen corresponding path program 1 times [2024-11-11 21:35:39,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:39,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166481687] [2024-11-11 21:35:39,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:39,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166481687] [2024-11-11 21:35:39,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166481687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:39,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:39,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:35:39,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618589006] [2024-11-11 21:35:39,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:39,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:35:39,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:39,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:35:39,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:35:39,600 INFO L87 Difference]: Start difference. First operand 61763 states and 87040 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:40,905 INFO L93 Difference]: Finished difference Result 145389 states and 202666 transitions. [2024-11-11 21:35:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:35:40,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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 [2024-11-11 21:35:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:41,100 INFO L225 Difference]: With dead ends: 145389 [2024-11-11 21:35:41,100 INFO L226 Difference]: Without dead ends: 133628 [2024-11-11 21:35:41,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:35:41,144 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1446 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:41,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 443 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:35:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133628 states. [2024-11-11 21:35:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133628 to 62061. [2024-11-11 21:35:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62061 states, 62060 states have (on average 1.4081050596197229) internal successors, (87387), 62060 states have internal predecessors, (87387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62061 states to 62061 states and 87387 transitions. [2024-11-11 21:35:42,472 INFO L78 Accepts]: Start accepts. Automaton has 62061 states and 87387 transitions. Word has length 75 [2024-11-11 21:35:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:42,472 INFO L471 AbstractCegarLoop]: Abstraction has 62061 states and 87387 transitions. [2024-11-11 21:35:42,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 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) [2024-11-11 21:35:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 62061 states and 87387 transitions. [2024-11-11 21:35:42,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 21:35:42,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:42,477 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:42,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 21:35:42,477 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:42,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:42,478 INFO L85 PathProgramCache]: Analyzing trace with hash 294775424, now seen corresponding path program 1 times [2024-11-11 21:35:42,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:42,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526223113] [2024-11-11 21:35:42,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:42,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:43,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:43,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:43,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526223113] [2024-11-11 21:35:43,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526223113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:43,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:43,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 21:35:43,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776391049] [2024-11-11 21:35:43,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:43,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 21:35:43,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:43,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 21:35:43,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 21:35:43,186 INFO L87 Difference]: Start difference. First operand 62061 states and 87387 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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) [2024-11-11 21:35:44,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:44,586 INFO L93 Difference]: Finished difference Result 113949 states and 160435 transitions. [2024-11-11 21:35:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:35:44,587 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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 [2024-11-11 21:35:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:44,752 INFO L225 Difference]: With dead ends: 113949 [2024-11-11 21:35:44,752 INFO L226 Difference]: Without dead ends: 106020 [2024-11-11 21:35:44,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-11 21:35:44,794 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 1159 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:44,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 2139 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 21:35:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106020 states. [2024-11-11 21:35:46,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106020 to 62077. [2024-11-11 21:35:46,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62077 states, 62076 states have (on average 1.4078387782717958) internal successors, (87393), 62076 states have internal predecessors, (87393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62077 states to 62077 states and 87393 transitions. [2024-11-11 21:35:46,208 INFO L78 Accepts]: Start accepts. Automaton has 62077 states and 87393 transitions. Word has length 77 [2024-11-11 21:35:46,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:46,209 INFO L471 AbstractCegarLoop]: Abstraction has 62077 states and 87393 transitions. [2024-11-11 21:35:46,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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) [2024-11-11 21:35:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 62077 states and 87393 transitions. [2024-11-11 21:35:46,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 21:35:46,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:46,214 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:46,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 21:35:46,214 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:46,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:46,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1091243400, now seen corresponding path program 1 times [2024-11-11 21:35:46,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:46,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208579647] [2024-11-11 21:35:46,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:46,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:46,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:46,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:46,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208579647] [2024-11-11 21:35:46,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208579647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:46,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:46,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 21:35:46,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655446085] [2024-11-11 21:35:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:46,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 21:35:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 21:35:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 21:35:46,823 INFO L87 Difference]: Start difference. First operand 62077 states and 87393 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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) [2024-11-11 21:35:47,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:47,801 INFO L93 Difference]: Finished difference Result 123265 states and 173573 transitions. [2024-11-11 21:35:47,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:35:47,802 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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 [2024-11-11 21:35:47,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:47,913 INFO L225 Difference]: With dead ends: 123265 [2024-11-11 21:35:47,914 INFO L226 Difference]: Without dead ends: 97419 [2024-11-11 21:35:47,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-11 21:35:47,962 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 1703 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:47,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 1808 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:35:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97419 states. [2024-11-11 21:35:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97419 to 61907. [2024-11-11 21:35:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61907 states, 61906 states have (on average 1.4082964494556263) internal successors, (87182), 61906 states have internal predecessors, (87182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:49,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61907 states to 61907 states and 87182 transitions. [2024-11-11 21:35:49,303 INFO L78 Accepts]: Start accepts. Automaton has 61907 states and 87182 transitions. Word has length 77 [2024-11-11 21:35:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:49,303 INFO L471 AbstractCegarLoop]: Abstraction has 61907 states and 87182 transitions. [2024-11-11 21:35:49,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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) [2024-11-11 21:35:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 61907 states and 87182 transitions. [2024-11-11 21:35:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-11 21:35:49,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:49,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:49,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 21:35:49,309 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:49,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash -571773518, now seen corresponding path program 1 times [2024-11-11 21:35:49,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:49,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939910755] [2024-11-11 21:35:49,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:49,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:49,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:49,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939910755] [2024-11-11 21:35:49,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939910755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:49,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:49,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:35:49,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957745819] [2024-11-11 21:35:49,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:49,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:35:49,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:49,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:35:49,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:49,360 INFO L87 Difference]: Start difference. First operand 61907 states and 87182 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:50,162 INFO L93 Difference]: Finished difference Result 113440 states and 159537 transitions. [2024-11-11 21:35:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:35:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 [2024-11-11 21:35:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:50,317 INFO L225 Difference]: With dead ends: 113440 [2024-11-11 21:35:50,318 INFO L226 Difference]: Without dead ends: 85348 [2024-11-11 21:35:50,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:50,363 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 197 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:50,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 374 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85348 states. [2024-11-11 21:35:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85348 to 85202. [2024-11-11 21:35:51,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85202 states, 85201 states have (on average 1.4071431086489594) internal successors, (119890), 85201 states have internal predecessors, (119890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85202 states to 85202 states and 119890 transitions. [2024-11-11 21:35:51,766 INFO L78 Accepts]: Start accepts. Automaton has 85202 states and 119890 transitions. Word has length 78 [2024-11-11 21:35:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:51,766 INFO L471 AbstractCegarLoop]: Abstraction has 85202 states and 119890 transitions. [2024-11-11 21:35:51,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:51,767 INFO L276 IsEmpty]: Start isEmpty. Operand 85202 states and 119890 transitions. [2024-11-11 21:35:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-11 21:35:51,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:51,773 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:51,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-11 21:35:51,773 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:51,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:51,774 INFO L85 PathProgramCache]: Analyzing trace with hash 698644110, now seen corresponding path program 1 times [2024-11-11 21:35:51,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:51,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893599257] [2024-11-11 21:35:51,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:51,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:51,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893599257] [2024-11-11 21:35:51,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893599257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:51,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:51,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:35:51,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722754198] [2024-11-11 21:35:51,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:51,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:35:51,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:51,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:35:51,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:51,844 INFO L87 Difference]: Start difference. First operand 85202 states and 119890 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:52,462 INFO L93 Difference]: Finished difference Result 181413 states and 255323 transitions. [2024-11-11 21:35:52,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:35:52,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 [2024-11-11 21:35:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:52,653 INFO L225 Difference]: With dead ends: 181413 [2024-11-11 21:35:52,654 INFO L226 Difference]: Without dead ends: 124089 [2024-11-11 21:35:52,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:52,721 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 184 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:52,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 425 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:52,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124089 states. [2024-11-11 21:35:54,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124089 to 123647. [2024-11-11 21:35:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123647 states, 123646 states have (on average 1.4098798181906411) internal successors, (174326), 123646 states have internal predecessors, (174326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123647 states to 123647 states and 174326 transitions. [2024-11-11 21:35:55,336 INFO L78 Accepts]: Start accepts. Automaton has 123647 states and 174326 transitions. Word has length 78 [2024-11-11 21:35:55,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:55,336 INFO L471 AbstractCegarLoop]: Abstraction has 123647 states and 174326 transitions. [2024-11-11 21:35:55,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 123647 states and 174326 transitions. [2024-11-11 21:35:55,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-11 21:35:55,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:55,344 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:55,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-11 21:35:55,344 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:55,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:55,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1177967387, now seen corresponding path program 1 times [2024-11-11 21:35:55,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:55,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069591534] [2024-11-11 21:35:55,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:55,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:55,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:55,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069591534] [2024-11-11 21:35:55,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069591534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:55,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:55,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:35:55,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660176930] [2024-11-11 21:35:55,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:55,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:35:55,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:55,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:35:55,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:55,406 INFO L87 Difference]: Start difference. First operand 123647 states and 174326 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-11 21:35:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:35:55,813 INFO L93 Difference]: Finished difference Result 178888 states and 251619 transitions. [2024-11-11 21:35:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:35:55,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2024-11-11 21:35:55,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:35:55,949 INFO L225 Difference]: With dead ends: 178888 [2024-11-11 21:35:55,949 INFO L226 Difference]: Without dead ends: 106920 [2024-11-11 21:35:56,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:35:56,008 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 152 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:35:56,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 515 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:35:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106920 states. [2024-11-11 21:35:57,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106920 to 106918. [2024-11-11 21:35:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106918 states, 106917 states have (on average 1.3939504475434215) internal successors, (149037), 106917 states have internal predecessors, (149037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:35:57,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106918 states to 106918 states and 149037 transitions. [2024-11-11 21:35:57,678 INFO L78 Accepts]: Start accepts. Automaton has 106918 states and 149037 transitions. Word has length 81 [2024-11-11 21:35:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:35:57,678 INFO L471 AbstractCegarLoop]: Abstraction has 106918 states and 149037 transitions. [2024-11-11 21:35:57,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-11 21:35:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 106918 states and 149037 transitions. [2024-11-11 21:35:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-11 21:35:57,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:35:57,688 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:35:57,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-11 21:35:57,688 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:35:57,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:35:57,689 INFO L85 PathProgramCache]: Analyzing trace with hash -530886962, now seen corresponding path program 1 times [2024-11-11 21:35:57,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:35:57,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68295936] [2024-11-11 21:35:57,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:35:57,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:35:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:35:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:35:59,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:35:59,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68295936] [2024-11-11 21:35:59,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68295936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:35:59,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:35:59,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 21:35:59,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910190860] [2024-11-11 21:35:59,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:35:59,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 21:35:59,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:35:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 21:35:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-11 21:35:59,175 INFO L87 Difference]: Start difference. First operand 106918 states and 149037 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 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) [2024-11-11 21:36:00,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:36:00,338 INFO L93 Difference]: Finished difference Result 182018 states and 252831 transitions. [2024-11-11 21:36:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 21:36:00,339 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 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 [2024-11-11 21:36:00,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:36:00,582 INFO L225 Difference]: With dead ends: 182018 [2024-11-11 21:36:00,582 INFO L226 Difference]: Without dead ends: 168765 [2024-11-11 21:36:00,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-11 21:36:00,642 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 1683 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:36:00,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 1866 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:36:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168765 states. [2024-11-11 21:36:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168765 to 103255. [2024-11-11 21:36:02,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103255 states, 103254 states have (on average 1.3936021849032483) internal successors, (143895), 103254 states have internal predecessors, (143895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:36:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103255 states to 103255 states and 143895 transitions. [2024-11-11 21:36:02,758 INFO L78 Accepts]: Start accepts. Automaton has 103255 states and 143895 transitions. Word has length 82 [2024-11-11 21:36:02,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:36:02,758 INFO L471 AbstractCegarLoop]: Abstraction has 103255 states and 143895 transitions. [2024-11-11 21:36:02,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 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) [2024-11-11 21:36:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 103255 states and 143895 transitions. [2024-11-11 21:36:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-11 21:36:02,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:36:02,765 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:36:02,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-11 21:36:02,765 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:36:02,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:36:02,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1478686874, now seen corresponding path program 1 times [2024-11-11 21:36:02,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:36:02,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509101677] [2024-11-11 21:36:02,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:36:02,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:36:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:36:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:36:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:36:02,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509101677] [2024-11-11 21:36:02,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509101677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:36:02,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:36:02,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:36:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703695831] [2024-11-11 21:36:02,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:36:02,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:36:02,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:36:02,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:36:02,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:36:02,814 INFO L87 Difference]: Start difference. First operand 103255 states and 143895 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-11 21:36:03,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:36:03,402 INFO L93 Difference]: Finished difference Result 206446 states and 288060 transitions. [2024-11-11 21:36:03,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:36:03,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 [2024-11-11 21:36:03,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:36:03,620 INFO L225 Difference]: With dead ends: 206446 [2024-11-11 21:36:03,620 INFO L226 Difference]: Without dead ends: 141164 [2024-11-11 21:36:03,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:36:03,692 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 172 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:36:03,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 356 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:36:03,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141164 states.