./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.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/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.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 229b91e3de975681c9279ff5877f98d2e4ca4fb1a04c4bc6189640654fad2f3e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:41:52,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:41:52,225 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:41:52,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:41:52,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:41:52,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:41:52,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:41:52,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:41:52,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:41:52,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:41:52,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:41:52,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:41:52,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:41:52,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:41:52,264 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:41:52,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:41:52,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:41:52,265 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:41:52,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:41:52,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:41:52,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:41:52,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:41:52,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:41:52,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:41:52,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:41:52,270 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:41:52,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:41:52,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:41:52,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:41:52,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:41:52,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:41:52,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:41:52,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:41:52,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:41:52,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:41:52,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:41:52,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:41:52,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:41:52,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:41:52,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:41:52,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:41:52,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:41:52,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 229b91e3de975681c9279ff5877f98d2e4ca4fb1a04c4bc6189640654fad2f3e [2024-11-11 22:41:52,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:41:52,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:41:52,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:41:52,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:41:52,512 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:41:52,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-11-11 22:41:53,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:41:54,100 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:41:54,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-11-11 22:41:54,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb999bc8/f904723024bf462198b0323dba1fb1cd/FLAG8ad86318a [2024-11-11 22:41:54,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb999bc8/f904723024bf462198b0323dba1fb1cd [2024-11-11 22:41:54,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:41:54,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:41:54,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:41:54,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:41:54,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:41:54,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:41:54" (1/1) ... [2024-11-11 22:41:54,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ea7a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:54, skipping insertion in model container [2024-11-11 22:41:54,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:41:54" (1/1) ... [2024-11-11 22:41:54,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:41:54,743 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/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[11640,11653] [2024-11-11 22:41:54,780 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/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[18930,18943] [2024-11-11 22:41:55,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:41:55,246 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:41:55,279 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/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[11640,11653] [2024-11-11 22:41:55,292 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/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[18930,18943] [2024-11-11 22:41:55,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:41:55,600 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:41:55,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55 WrapperNode [2024-11-11 22:41:55,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:41:55,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:41:55,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:41:55,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:41:55,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:55,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:55,900 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5099 [2024-11-11 22:41:55,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:41:55,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:41:55,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:41:55,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:41:55,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:55,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:55,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,073 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 22:41:56,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:41:56,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:41:56,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:41:56,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:41:56,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (1/1) ... [2024-11-11 22:41:56,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:41:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:41:56,294 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 22:41:56,296 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 22:41:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:41:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:41:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:41:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:41:56,421 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:41:56,422 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:41:59,509 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-11 22:41:59,509 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:41:59,534 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:41:59,534 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-11 22:41:59,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:41:59 BoogieIcfgContainer [2024-11-11 22:41:59,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:41:59,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:41:59,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:41:59,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:41:59,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:41:54" (1/3) ... [2024-11-11 22:41:59,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4252c61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:41:59, skipping insertion in model container [2024-11-11 22:41:59,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:41:55" (2/3) ... [2024-11-11 22:41:59,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4252c61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:41:59, skipping insertion in model container [2024-11-11 22:41:59,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:41:59" (3/3) ... [2024-11-11 22:41:59,546 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-11-11 22:41:59,560 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:41:59,560 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:41:59,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:41:59,629 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;@5ced0416, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:41:59,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:41:59,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states 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 22:41:59,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-11 22:41:59,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:41:59,644 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] [2024-11-11 22:41:59,644 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:41:59,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:41:59,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1798739915, now seen corresponding path program 1 times [2024-11-11 22:41:59,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:41:59,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108232271] [2024-11-11 22:41:59,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:41:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:41:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:41:59,888 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 22:41:59,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:41:59,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108232271] [2024-11-11 22:41:59,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108232271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:41:59,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:41:59,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 22:41:59,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843324232] [2024-11-11 22:41:59,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:41:59,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 22:41:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:41:59,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 22:41:59,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 22:41:59,919 INFO L87 Difference]: Start difference. First operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 0 states have call successors, (0), 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 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 22:42:00,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:00,001 INFO L93 Difference]: Finished difference Result 1761 states and 3344 transitions. [2024-11-11 22:42:00,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 22:42:00,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-11 22:42:00,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:00,021 INFO L225 Difference]: With dead ends: 1761 [2024-11-11 22:42:00,022 INFO L226 Difference]: Without dead ends: 833 [2024-11-11 22:42:00,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 22:42:00,033 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:00,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:00,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-11 22:42:00,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-11 22:42:00,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8941034897713598) internal successors, (1574), 832 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states 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 22:42:00,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1574 transitions. [2024-11-11 22:42:00,111 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1574 transitions. Word has length 24 [2024-11-11 22:42:00,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:00,112 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1574 transitions. [2024-11-11 22:42:00,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 22:42:00,112 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1574 transitions. [2024-11-11 22:42:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-11 22:42:00,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:00,113 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] [2024-11-11 22:42:00,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:42:00,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:00,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:00,114 INFO L85 PathProgramCache]: Analyzing trace with hash 502082675, now seen corresponding path program 1 times [2024-11-11 22:42:00,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:00,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390855827] [2024-11-11 22:42:00,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:00,317 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 22:42:00,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:00,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390855827] [2024-11-11 22:42:00,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390855827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:00,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:00,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:42:00,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105214257] [2024-11-11 22:42:00,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:00,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:42:00,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:00,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:42:00,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:42:00,322 INFO L87 Difference]: Start difference. First operand 833 states and 1574 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 22:42:00,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:00,425 INFO L93 Difference]: Finished difference Result 879 states and 1645 transitions. [2024-11-11 22:42:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:42:00,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-11 22:42:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:00,429 INFO L225 Difference]: With dead ends: 879 [2024-11-11 22:42:00,429 INFO L226 Difference]: Without dead ends: 833 [2024-11-11 22:42:00,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 22:42:00,431 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 0 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:00,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6252 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:42:00,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-11 22:42:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-11 22:42:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8567990373044525) internal successors, (1543), 832 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states 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 22:42:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1543 transitions. [2024-11-11 22:42:00,458 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1543 transitions. Word has length 24 [2024-11-11 22:42:00,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:00,459 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1543 transitions. [2024-11-11 22:42:00,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 22:42:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1543 transitions. [2024-11-11 22:42:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-11 22:42:00,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:00,466 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] [2024-11-11 22:42:00,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:42:00,467 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:00,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:00,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1518044022, now seen corresponding path program 1 times [2024-11-11 22:42:00,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:00,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420427189] [2024-11-11 22:42:00,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:00,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:00,701 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 22:42:00,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:00,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420427189] [2024-11-11 22:42:00,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420427189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:00,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:00,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:42:00,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27641710] [2024-11-11 22:42:00,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:00,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:42:00,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:00,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:42:00,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:42:00,703 INFO L87 Difference]: Start difference. First operand 833 states and 1543 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 22:42:00,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:00,949 INFO L93 Difference]: Finished difference Result 1253 states and 2213 transitions. [2024-11-11 22:42:00,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:42:00,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-11 22:42:00,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:00,953 INFO L225 Difference]: With dead ends: 1253 [2024-11-11 22:42:00,953 INFO L226 Difference]: Without dead ends: 1211 [2024-11-11 22:42:00,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-11 22:42:00,954 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 7953 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7953 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:00,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7953 Valid, 2746 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:42:00,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-11 22:42:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 873. [2024-11-11 22:42:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 871 states have (on average 1.8450057405281286) internal successors, (1607), 872 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states 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 22:42:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1607 transitions. [2024-11-11 22:42:00,968 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1607 transitions. Word has length 54 [2024-11-11 22:42:00,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:00,972 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1607 transitions. [2024-11-11 22:42:00,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 22:42:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1607 transitions. [2024-11-11 22:42:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-11 22:42:00,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:00,974 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] [2024-11-11 22:42:00,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:42:00,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:00,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:00,975 INFO L85 PathProgramCache]: Analyzing trace with hash 32878714, now seen corresponding path program 1 times [2024-11-11 22:42:00,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:00,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980947524] [2024-11-11 22:42:00,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:00,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:01,047 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 22:42:01,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:01,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980947524] [2024-11-11 22:42:01,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980947524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:01,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:01,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:01,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454539309] [2024-11-11 22:42:01,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:01,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:01,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:01,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:01,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:01,050 INFO L87 Difference]: Start difference. First operand 873 states and 1607 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 22:42:01,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:01,076 INFO L93 Difference]: Finished difference Result 1026 states and 1850 transitions. [2024-11-11 22:42:01,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:01,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-11 22:42:01,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:01,079 INFO L225 Difference]: With dead ends: 1026 [2024-11-11 22:42:01,080 INFO L226 Difference]: Without dead ends: 944 [2024-11-11 22:42:01,080 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 22:42:01,083 INFO L435 NwaCegarLoop]: 1541 mSDtfsCounter, 1482 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:01,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1603 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-11 22:42:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-11 22:42:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 1.824468085106383) internal successors, (1715), 941 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states 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 22:42:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1715 transitions. [2024-11-11 22:42:01,098 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1715 transitions. Word has length 56 [2024-11-11 22:42:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:01,100 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1715 transitions. [2024-11-11 22:42:01,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 22:42:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1715 transitions. [2024-11-11 22:42:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-11 22:42:01,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:01,101 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] [2024-11-11 22:42:01,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:42:01,101 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:01,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:01,102 INFO L85 PathProgramCache]: Analyzing trace with hash 99372226, now seen corresponding path program 1 times [2024-11-11 22:42:01,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:01,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675162190] [2024-11-11 22:42:01,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:01,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:01,372 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 22:42:01,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:01,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675162190] [2024-11-11 22:42:01,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675162190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:01,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:01,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:42:01,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039775005] [2024-11-11 22:42:01,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:01,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:42:01,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:01,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:42:01,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:42:01,373 INFO L87 Difference]: Start difference. First operand 942 states and 1715 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 22:42:01,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:01,513 INFO L93 Difference]: Finished difference Result 1095 states and 1955 transitions. [2024-11-11 22:42:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:42:01,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-11 22:42:01,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:01,517 INFO L225 Difference]: With dead ends: 1095 [2024-11-11 22:42:01,517 INFO L226 Difference]: Without dead ends: 944 [2024-11-11 22:42:01,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:42:01,518 INFO L435 NwaCegarLoop]: 1536 mSDtfsCounter, 2994 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:01,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 1795 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:01,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-11 22:42:01,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-11 22:42:01,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 1.8223404255319149) internal successors, (1713), 941 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states 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 22:42:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1713 transitions. [2024-11-11 22:42:01,530 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1713 transitions. Word has length 56 [2024-11-11 22:42:01,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:01,530 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1713 transitions. [2024-11-11 22:42:01,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 22:42:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1713 transitions. [2024-11-11 22:42:01,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:42:01,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:01,531 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] [2024-11-11 22:42:01,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:42:01,531 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:01,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:01,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1629151369, now seen corresponding path program 1 times [2024-11-11 22:42:01,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:01,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78417580] [2024-11-11 22:42:01,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:01,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:01,738 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 22:42:01,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:01,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78417580] [2024-11-11 22:42:01,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78417580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:01,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:01,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:42:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567912625] [2024-11-11 22:42:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:01,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:42:01,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:01,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:42:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:42:01,739 INFO L87 Difference]: Start difference. First operand 942 states and 1713 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 22:42:01,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:01,790 INFO L93 Difference]: Finished difference Result 950 states and 1722 transitions. [2024-11-11 22:42:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 22:42:01,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-11 22:42:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:01,793 INFO L225 Difference]: With dead ends: 950 [2024-11-11 22:42:01,793 INFO L226 Difference]: Without dead ends: 948 [2024-11-11 22:42:01,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:42:01,799 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 0 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10746 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:01,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10746 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-11 22:42:01,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-11-11 22:42:01,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8160676532769555) internal successors, (1718), 947 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states 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 22:42:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1718 transitions. [2024-11-11 22:42:01,820 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1718 transitions. Word has length 57 [2024-11-11 22:42:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:01,820 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1718 transitions. [2024-11-11 22:42:01,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 22:42:01,821 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1718 transitions. [2024-11-11 22:42:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-11 22:42:01,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:01,821 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] [2024-11-11 22:42:01,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:42:01,821 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:01,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:01,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1409361730, now seen corresponding path program 1 times [2024-11-11 22:42:01,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:01,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019275814] [2024-11-11 22:42:01,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:01,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:01,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019275814] [2024-11-11 22:42:01,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019275814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:01,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:01,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713033290] [2024-11-11 22:42:01,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:01,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:01,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:01,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:01,884 INFO L87 Difference]: Start difference. First operand 948 states and 1718 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:01,907 INFO L93 Difference]: Finished difference Result 1118 states and 1979 transitions. [2024-11-11 22:42:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-11 22:42:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:01,911 INFO L225 Difference]: With dead ends: 1118 [2024-11-11 22:42:01,912 INFO L226 Difference]: Without dead ends: 1030 [2024-11-11 22:42:01,913 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 22:42:01,914 INFO L435 NwaCegarLoop]: 1595 mSDtfsCounter, 1496 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:01,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:01,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-11 22:42:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1028. [2024-11-11 22:42:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1026 states have (on average 1.7923976608187135) internal successors, (1839), 1027 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states 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 22:42:01,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1839 transitions. [2024-11-11 22:42:01,928 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1839 transitions. Word has length 58 [2024-11-11 22:42:01,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:01,929 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1839 transitions. [2024-11-11 22:42:01,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:01,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1839 transitions. [2024-11-11 22:42:01,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-11 22:42:01,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:01,930 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] [2024-11-11 22:42:01,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:42:01,931 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:01,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:01,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1383487166, now seen corresponding path program 1 times [2024-11-11 22:42:01,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:01,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570177633] [2024-11-11 22:42:01,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:01,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:01,973 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 22:42:01,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:01,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570177633] [2024-11-11 22:42:01,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570177633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:01,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:01,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24718861] [2024-11-11 22:42:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:01,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:01,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:01,976 INFO L87 Difference]: Start difference. First operand 1028 states and 1839 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:01,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:01,996 INFO L93 Difference]: Finished difference Result 1474 states and 2519 transitions. [2024-11-11 22:42:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:01,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-11 22:42:01,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:02,000 INFO L225 Difference]: With dead ends: 1474 [2024-11-11 22:42:02,000 INFO L226 Difference]: Without dead ends: 1239 [2024-11-11 22:42:02,000 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 22:42:02,001 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1492 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:02,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:02,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2024-11-11 22:42:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1237. [2024-11-11 22:42:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1235 states have (on average 1.7417004048582996) internal successors, (2151), 1236 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states 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 22:42:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 2151 transitions. [2024-11-11 22:42:02,017 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 2151 transitions. Word has length 58 [2024-11-11 22:42:02,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:02,018 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 2151 transitions. [2024-11-11 22:42:02,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 2151 transitions. [2024-11-11 22:42:02,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-11 22:42:02,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:02,018 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] [2024-11-11 22:42:02,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:42:02,019 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:02,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:02,019 INFO L85 PathProgramCache]: Analyzing trace with hash 696011330, now seen corresponding path program 1 times [2024-11-11 22:42:02,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:02,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596098290] [2024-11-11 22:42:02,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:02,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:02,053 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 22:42:02,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:02,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596098290] [2024-11-11 22:42:02,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596098290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:02,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:02,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:02,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209303754] [2024-11-11 22:42:02,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:02,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:02,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:02,055 INFO L87 Difference]: Start difference. First operand 1237 states and 2151 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:02,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:02,079 INFO L93 Difference]: Finished difference Result 2077 states and 3413 transitions. [2024-11-11 22:42:02,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:02,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-11 22:42:02,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:02,085 INFO L225 Difference]: With dead ends: 2077 [2024-11-11 22:42:02,085 INFO L226 Difference]: Without dead ends: 1633 [2024-11-11 22:42:02,086 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 22:42:02,086 INFO L435 NwaCegarLoop]: 1585 mSDtfsCounter, 1490 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:02,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-11 22:42:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1631. [2024-11-11 22:42:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.6740331491712708) internal successors, (2727), 1630 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states 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 22:42:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2727 transitions. [2024-11-11 22:42:02,115 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2727 transitions. Word has length 58 [2024-11-11 22:42:02,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:02,115 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2727 transitions. [2024-11-11 22:42:02,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:02,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2727 transitions. [2024-11-11 22:42:02,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-11 22:42:02,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:02,115 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] [2024-11-11 22:42:02,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:42:02,116 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:02,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:02,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1818023102, now seen corresponding path program 1 times [2024-11-11 22:42:02,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:02,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248873153] [2024-11-11 22:42:02,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:02,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:02,156 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 22:42:02,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:02,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248873153] [2024-11-11 22:42:02,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248873153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:02,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:02,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:02,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54977435] [2024-11-11 22:42:02,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:02,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:02,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:02,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:02,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:02,158 INFO L87 Difference]: Start difference. First operand 1631 states and 2727 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:02,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:02,191 INFO L93 Difference]: Finished difference Result 3211 states and 5057 transitions. [2024-11-11 22:42:02,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:02,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-11 22:42:02,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:02,198 INFO L225 Difference]: With dead ends: 3211 [2024-11-11 22:42:02,198 INFO L226 Difference]: Without dead ends: 2373 [2024-11-11 22:42:02,199 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 22:42:02,199 INFO L435 NwaCegarLoop]: 1583 mSDtfsCounter, 1488 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:02,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1667 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2024-11-11 22:42:02,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2371. [2024-11-11 22:42:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2369 states have (on average 1.5968763191219923) internal successors, (3783), 2370 states have internal predecessors, (3783), 0 states have call successors, (0), 0 states 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 22:42:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3783 transitions. [2024-11-11 22:42:02,270 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3783 transitions. Word has length 58 [2024-11-11 22:42:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:02,271 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 3783 transitions. [2024-11-11 22:42:02,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:02,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3783 transitions. [2024-11-11 22:42:02,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-11 22:42:02,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:02,272 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] [2024-11-11 22:42:02,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:42:02,272 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:02,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:02,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1673218114, now seen corresponding path program 1 times [2024-11-11 22:42:02,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:02,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580830026] [2024-11-11 22:42:02,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:02,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:02,310 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 22:42:02,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:02,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580830026] [2024-11-11 22:42:02,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580830026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:02,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:02,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:02,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150113772] [2024-11-11 22:42:02,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:02,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:02,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:02,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:02,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:02,312 INFO L87 Difference]: Start difference. First operand 2371 states and 3783 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:02,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:02,350 INFO L93 Difference]: Finished difference Result 5335 states and 8057 transitions. [2024-11-11 22:42:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:02,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-11 22:42:02,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:02,360 INFO L225 Difference]: With dead ends: 5335 [2024-11-11 22:42:02,360 INFO L226 Difference]: Without dead ends: 3757 [2024-11-11 22:42:02,362 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 22:42:02,362 INFO L435 NwaCegarLoop]: 1597 mSDtfsCounter, 1494 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:02,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2024-11-11 22:42:02,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3755. [2024-11-11 22:42:02,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3753 states have (on average 1.5195843325339728) internal successors, (5703), 3754 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states 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 22:42:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5703 transitions. [2024-11-11 22:42:02,423 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5703 transitions. Word has length 58 [2024-11-11 22:42:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:02,423 INFO L471 AbstractCegarLoop]: Abstraction has 3755 states and 5703 transitions. [2024-11-11 22:42:02,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 22:42:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5703 transitions. [2024-11-11 22:42:02,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-11 22:42:02,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:02,424 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] [2024-11-11 22:42:02,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:42:02,424 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:02,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:02,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1060668298, now seen corresponding path program 1 times [2024-11-11 22:42:02,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:02,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111867769] [2024-11-11 22:42:02,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:02,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:02,467 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 22:42:02,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:02,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111867769] [2024-11-11 22:42:02,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111867769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:02,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:02,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 22:42:02,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634067610] [2024-11-11 22:42:02,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:02,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:02,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:02,469 INFO L87 Difference]: Start difference. First operand 3755 states and 5703 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 22:42:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:05,117 INFO L93 Difference]: Finished difference Result 5259 states and 8576 transitions. [2024-11-11 22:42:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:05,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-11 22:42:05,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:05,128 INFO L225 Difference]: With dead ends: 5259 [2024-11-11 22:42:05,128 INFO L226 Difference]: Without dead ends: 4506 [2024-11-11 22:42:05,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:05,130 INFO L435 NwaCegarLoop]: 572 mSDtfsCounter, 842 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:05,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 579 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-11 22:42:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2024-11-11 22:42:05,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 4506. [2024-11-11 22:42:05,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4506 states, 4504 states have (on average 1.483570159857904) internal successors, (6682), 4505 states have internal predecessors, (6682), 0 states have call successors, (0), 0 states 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 22:42:05,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4506 states to 4506 states and 6682 transitions. [2024-11-11 22:42:05,193 INFO L78 Accepts]: Start accepts. Automaton has 4506 states and 6682 transitions. Word has length 63 [2024-11-11 22:42:05,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:05,193 INFO L471 AbstractCegarLoop]: Abstraction has 4506 states and 6682 transitions. [2024-11-11 22:42:05,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 22:42:05,193 INFO L276 IsEmpty]: Start isEmpty. Operand 4506 states and 6682 transitions. [2024-11-11 22:42:05,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:42:05,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:05,195 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:05,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:42:05,195 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:05,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:05,196 INFO L85 PathProgramCache]: Analyzing trace with hash 273219202, now seen corresponding path program 1 times [2024-11-11 22:42:05,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:05,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431775815] [2024-11-11 22:42:05,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:05,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:42:05,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:05,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431775815] [2024-11-11 22:42:05,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431775815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:05,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:05,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:42:05,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551596951] [2024-11-11 22:42:05,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:05,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:42:05,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:05,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:42:05,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:42:05,306 INFO L87 Difference]: Start difference. First operand 4506 states and 6682 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:05,531 INFO L93 Difference]: Finished difference Result 19110 states and 27488 transitions. [2024-11-11 22:42:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:42:05,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-11 22:42:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:05,566 INFO L225 Difference]: With dead ends: 19110 [2024-11-11 22:42:05,566 INFO L226 Difference]: Without dead ends: 16996 [2024-11-11 22:42:05,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:42:05,575 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6305 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6305 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:05,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6305 Valid, 3588 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:42:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16996 states. [2024-11-11 22:42:05,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16996 to 7050. [2024-11-11 22:42:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7048 states have (on average 1.456583427922815) internal successors, (10266), 7049 states have internal predecessors, (10266), 0 states have call successors, (0), 0 states 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 22:42:05,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10266 transitions. [2024-11-11 22:42:05,852 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 10266 transitions. Word has length 77 [2024-11-11 22:42:05,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:05,853 INFO L471 AbstractCegarLoop]: Abstraction has 7050 states and 10266 transitions. [2024-11-11 22:42:05,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 10266 transitions. [2024-11-11 22:42:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:42:05,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:05,855 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:05,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:42:05,856 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:05,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:05,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1775337602, now seen corresponding path program 1 times [2024-11-11 22:42:05,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:05,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702989420] [2024-11-11 22:42:05,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:05,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 22:42:05,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:05,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702989420] [2024-11-11 22:42:05,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702989420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:05,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:05,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:42:05,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550257485] [2024-11-11 22:42:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:05,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:42:05,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:05,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:42:05,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:42:05,994 INFO L87 Difference]: Start difference. First operand 7050 states and 10266 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 22:42:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:06,374 INFO L93 Difference]: Finished difference Result 22070 states and 31680 transitions. [2024-11-11 22:42:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:42:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 22:42:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:06,407 INFO L225 Difference]: With dead ends: 22070 [2024-11-11 22:42:06,407 INFO L226 Difference]: Without dead ends: 19108 [2024-11-11 22:42:06,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:42:06,418 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6351 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6351 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:06,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6351 Valid, 3615 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:42:06,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19108 states. [2024-11-11 22:42:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19108 to 11066. [2024-11-11 22:42:06,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11066 states, 11064 states have (on average 1.4383586406362978) internal successors, (15914), 11065 states have internal predecessors, (15914), 0 states have call successors, (0), 0 states 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 22:42:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11066 states to 11066 states and 15914 transitions. [2024-11-11 22:42:06,678 INFO L78 Accepts]: Start accepts. Automaton has 11066 states and 15914 transitions. Word has length 77 [2024-11-11 22:42:06,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:06,679 INFO L471 AbstractCegarLoop]: Abstraction has 11066 states and 15914 transitions. [2024-11-11 22:42:06,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 22:42:06,679 INFO L276 IsEmpty]: Start isEmpty. Operand 11066 states and 15914 transitions. [2024-11-11 22:42:06,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:42:06,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:06,681 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:06,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:42:06,682 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:06,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash -440131198, now seen corresponding path program 1 times [2024-11-11 22:42:06,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:06,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404017247] [2024-11-11 22:42:06,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:06,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-11 22:42:06,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404017247] [2024-11-11 22:42:06,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404017247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:06,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:06,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:42:06,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730043218] [2024-11-11 22:42:06,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:06,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:42:06,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:06,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:42:06,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:42:06,791 INFO L87 Difference]: Start difference. First operand 11066 states and 15914 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 22:42:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:07,122 INFO L93 Difference]: Finished difference Result 25030 states and 35856 transitions. [2024-11-11 22:42:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:42:07,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 77 [2024-11-11 22:42:07,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:07,155 INFO L225 Difference]: With dead ends: 25030 [2024-11-11 22:42:07,155 INFO L226 Difference]: Without dead ends: 22068 [2024-11-11 22:42:07,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:42:07,168 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 6397 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6397 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:07,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6397 Valid, 3578 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:42:07,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22068 states. [2024-11-11 22:42:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22068 to 14026. [2024-11-11 22:42:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14026 states, 14024 states have (on average 1.4325442099258414) internal successors, (20090), 14025 states have internal predecessors, (20090), 0 states have call successors, (0), 0 states 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 22:42:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14026 states to 14026 states and 20090 transitions. [2024-11-11 22:42:07,502 INFO L78 Accepts]: Start accepts. Automaton has 14026 states and 20090 transitions. Word has length 77 [2024-11-11 22:42:07,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:07,502 INFO L471 AbstractCegarLoop]: Abstraction has 14026 states and 20090 transitions. [2024-11-11 22:42:07,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 22:42:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand 14026 states and 20090 transitions. [2024-11-11 22:42:07,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:42:07,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:07,504 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:07,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:42:07,504 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:07,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:07,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1340801666, now seen corresponding path program 1 times [2024-11-11 22:42:07,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:07,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936154060] [2024-11-11 22:42:07,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:07,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 22:42:07,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:07,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936154060] [2024-11-11 22:42:07,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936154060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:07,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:07,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:42:07,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846927416] [2024-11-11 22:42:07,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:07,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:42:07,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:07,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:42:07,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:42:07,611 INFO L87 Difference]: Start difference. First operand 14026 states and 20090 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 22:42:07,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:07,987 INFO L93 Difference]: Finished difference Result 27990 states and 40032 transitions. [2024-11-11 22:42:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:42:07,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 77 [2024-11-11 22:42:07,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:08,027 INFO L225 Difference]: With dead ends: 27990 [2024-11-11 22:42:08,027 INFO L226 Difference]: Without dead ends: 25028 [2024-11-11 22:42:08,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:42:08,039 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 6353 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3617 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:08,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3617 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:42:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25028 states. [2024-11-11 22:42:08,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25028 to 16986. [2024-11-11 22:42:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16986 states, 16984 states have (on average 1.4287564766839378) internal successors, (24266), 16985 states have internal predecessors, (24266), 0 states have call successors, (0), 0 states 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 22:42:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16986 states to 16986 states and 24266 transitions. [2024-11-11 22:42:08,367 INFO L78 Accepts]: Start accepts. Automaton has 16986 states and 24266 transitions. Word has length 77 [2024-11-11 22:42:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:08,367 INFO L471 AbstractCegarLoop]: Abstraction has 16986 states and 24266 transitions. [2024-11-11 22:42:08,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 22:42:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 16986 states and 24266 transitions. [2024-11-11 22:42:08,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:42:08,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:08,369 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:08,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:42:08,370 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:08,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:08,370 INFO L85 PathProgramCache]: Analyzing trace with hash 537075586, now seen corresponding path program 1 times [2024-11-11 22:42:08,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:08,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60804774] [2024-11-11 22:42:08,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:08,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 22:42:08,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:08,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60804774] [2024-11-11 22:42:08,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60804774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:08,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:08,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:42:08,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120841874] [2024-11-11 22:42:08,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:08,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:42:08,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:08,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:42:08,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:42:08,467 INFO L87 Difference]: Start difference. First operand 16986 states and 24266 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 22:42:08,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:08,910 INFO L93 Difference]: Finished difference Result 30950 states and 44208 transitions. [2024-11-11 22:42:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:42:08,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 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 22:42:08,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:08,946 INFO L225 Difference]: With dead ends: 30950 [2024-11-11 22:42:08,946 INFO L226 Difference]: Without dead ends: 27988 [2024-11-11 22:42:08,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:42:08,961 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 6307 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:08,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 3698 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:42:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27988 states. [2024-11-11 22:42:09,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27988 to 19946. [2024-11-11 22:42:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.426093060569595) internal successors, (28442), 19945 states have internal predecessors, (28442), 0 states have call successors, (0), 0 states 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 22:42:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28442 transitions. [2024-11-11 22:42:09,496 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28442 transitions. Word has length 77 [2024-11-11 22:42:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:09,497 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28442 transitions. [2024-11-11 22:42:09,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 22:42:09,497 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28442 transitions. [2024-11-11 22:42:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-11 22:42:09,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:09,503 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:09,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:42:09,503 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:09,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash 895246760, now seen corresponding path program 1 times [2024-11-11 22:42:09,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:09,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259575768] [2024-11-11 22:42:09,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:09,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:09,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:09,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259575768] [2024-11-11 22:42:09,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259575768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:09,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:09,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:09,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352014763] [2024-11-11 22:42:09,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:09,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:09,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:09,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:09,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:09,593 INFO L87 Difference]: Start difference. First operand 19946 states and 28442 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 22:42:09,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:09,963 INFO L93 Difference]: Finished difference Result 38350 states and 54428 transitions. [2024-11-11 22:42:09,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:09,964 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 22:42:09,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:09,984 INFO L225 Difference]: With dead ends: 38350 [2024-11-11 22:42:09,985 INFO L226 Difference]: Without dead ends: 19948 [2024-11-11 22:42:10,004 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 22:42:10,005 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 45 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:10,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:10,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2024-11-11 22:42:10,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 19946. [2024-11-11 22:42:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.411251504211793) internal successors, (28146), 19945 states have internal predecessors, (28146), 0 states have call successors, (0), 0 states 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 22:42:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28146 transitions. [2024-11-11 22:42:10,418 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28146 transitions. Word has length 78 [2024-11-11 22:42:10,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:10,419 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28146 transitions. [2024-11-11 22:42:10,419 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 22:42:10,419 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28146 transitions. [2024-11-11 22:42:10,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-11 22:42:10,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:10,421 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:10,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:42:10,421 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:10,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:10,421 INFO L85 PathProgramCache]: Analyzing trace with hash -615640646, now seen corresponding path program 1 times [2024-11-11 22:42:10,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:10,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056440514] [2024-11-11 22:42:10,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:10,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:10,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:10,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056440514] [2024-11-11 22:42:10,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056440514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:10,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:10,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:10,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344785313] [2024-11-11 22:42:10,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:10,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:10,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:10,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:10,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:10,486 INFO L87 Difference]: Start difference. First operand 19946 states and 28146 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:10,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:10,653 INFO L93 Difference]: Finished difference Result 26833 states and 37840 transitions. [2024-11-11 22:42:10,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:10,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-11 22:42:10,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:10,662 INFO L225 Difference]: With dead ends: 26833 [2024-11-11 22:42:10,662 INFO L226 Difference]: Without dead ends: 8431 [2024-11-11 22:42:10,674 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 22:42:10,674 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 39 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:10,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:10,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8431 states. [2024-11-11 22:42:10,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8431 to 8423. [2024-11-11 22:42:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 8421 states have (on average 1.4296401852511578) internal successors, (12039), 8422 states have internal predecessors, (12039), 0 states have call successors, (0), 0 states 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 22:42:10,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 12039 transitions. [2024-11-11 22:42:10,802 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 12039 transitions. Word has length 79 [2024-11-11 22:42:10,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:10,803 INFO L471 AbstractCegarLoop]: Abstraction has 8423 states and 12039 transitions. [2024-11-11 22:42:10,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:10,803 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 12039 transitions. [2024-11-11 22:42:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:42:10,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:10,804 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:10,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:42:10,804 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:10,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:10,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1683802150, now seen corresponding path program 1 times [2024-11-11 22:42:10,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:10,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192326805] [2024-11-11 22:42:10,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:10,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:10,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:10,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192326805] [2024-11-11 22:42:10,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192326805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:10,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:10,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:10,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581714509] [2024-11-11 22:42:10,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:10,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:10,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:10,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:10,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:10,872 INFO L87 Difference]: Start difference. First operand 8423 states and 12039 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:10,930 INFO L93 Difference]: Finished difference Result 11859 states and 16825 transitions. [2024-11-11 22:42:10,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:10,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-11 22:42:10,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:10,936 INFO L225 Difference]: With dead ends: 11859 [2024-11-11 22:42:10,936 INFO L226 Difference]: Without dead ends: 4993 [2024-11-11 22:42:10,942 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 22:42:10,943 INFO L435 NwaCegarLoop]: 1569 mSDtfsCounter, 41 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:10,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:10,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2024-11-11 22:42:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4991. [2024-11-11 22:42:11,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4989 states have (on average 1.44377630787733) internal successors, (7203), 4990 states have internal predecessors, (7203), 0 states have call successors, (0), 0 states 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 22:42:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7203 transitions. [2024-11-11 22:42:11,010 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7203 transitions. Word has length 80 [2024-11-11 22:42:11,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:11,010 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7203 transitions. [2024-11-11 22:42:11,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:11,011 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7203 transitions. [2024-11-11 22:42:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-11 22:42:11,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:11,012 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:11,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 22:42:11,012 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:11,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash 263472268, now seen corresponding path program 1 times [2024-11-11 22:42:11,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:11,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213105153] [2024-11-11 22:42:11,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:11,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:11,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:11,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213105153] [2024-11-11 22:42:11,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213105153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:11,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:11,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:11,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677532896] [2024-11-11 22:42:11,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:11,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:11,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:11,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:11,069 INFO L87 Difference]: Start difference. First operand 4991 states and 7203 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 22:42:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:11,105 INFO L93 Difference]: Finished difference Result 6711 states and 9571 transitions. [2024-11-11 22:42:11,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:11,106 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 22:42:11,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:11,109 INFO L225 Difference]: With dead ends: 6711 [2024-11-11 22:42:11,110 INFO L226 Difference]: Without dead ends: 3277 [2024-11-11 22:42:11,112 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 22:42:11,112 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 38 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:11,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3069 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:11,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2024-11-11 22:42:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3275. [2024-11-11 22:42:11,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3273 states have (on average 1.4699052856706385) internal successors, (4811), 3274 states have internal predecessors, (4811), 0 states have call successors, (0), 0 states 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 22:42:11,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4811 transitions. [2024-11-11 22:42:11,154 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4811 transitions. Word has length 82 [2024-11-11 22:42:11,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:11,155 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 4811 transitions. [2024-11-11 22:42:11,155 INFO L472 AbstractCegarLoop]: INTERPOLANT 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) [2024-11-11 22:42:11,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4811 transitions. [2024-11-11 22:42:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-11 22:42:11,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:11,156 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:11,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 22:42:11,156 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:11,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:11,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1956730946, now seen corresponding path program 1 times [2024-11-11 22:42:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:11,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768088924] [2024-11-11 22:42:11,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:11,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:11,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768088924] [2024-11-11 22:42:11,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768088924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:42:11,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:42:11,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 22:42:11,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172992425] [2024-11-11 22:42:11,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:42:11,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:42:11,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:42:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 22:42:11,212 INFO L87 Difference]: Start difference. First operand 3275 states and 4811 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:11,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:11,238 INFO L93 Difference]: Finished difference Result 4137 states and 5983 transitions. [2024-11-11 22:42:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:42:11,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-11 22:42:11,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:11,241 INFO L225 Difference]: With dead ends: 4137 [2024-11-11 22:42:11,242 INFO L226 Difference]: Without dead ends: 2419 [2024-11-11 22:42:11,243 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 22:42:11,243 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 35 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:11,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3054 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:42:11,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2024-11-11 22:42:11,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2417. [2024-11-11 22:42:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2415 states have (on average 1.5022774327122153) internal successors, (3628), 2416 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states 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 22:42:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 3628 transitions. [2024-11-11 22:42:11,270 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 3628 transitions. Word has length 84 [2024-11-11 22:42:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:11,270 INFO L471 AbstractCegarLoop]: Abstraction has 2417 states and 3628 transitions. [2024-11-11 22:42:11,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 22:42:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 3628 transitions. [2024-11-11 22:42:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-11 22:42:11,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:11,271 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:11,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 22:42:11,272 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:11,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1389986160, now seen corresponding path program 1 times [2024-11-11 22:42:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:11,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455259363] [2024-11-11 22:42:11,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:11,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:42:11,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:11,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455259363] [2024-11-11 22:42:11,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455259363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:42:11,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943155940] [2024-11-11 22:42:11,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:11,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:42:11,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:42:11,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:42:11,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:42:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:11,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-11 22:42:11,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:42:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:11,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:42:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:12,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943155940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:42:12,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:42:12,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 20 [2024-11-11 22:42:12,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628877910] [2024-11-11 22:42:12,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:42:12,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-11 22:42:12,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:12,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-11 22:42:12,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-11 22:42:12,514 INFO L87 Difference]: Start difference. First operand 2417 states and 3628 transitions. Second operand has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states 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 22:42:13,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:13,144 INFO L93 Difference]: Finished difference Result 5073 states and 7116 transitions. [2024-11-11 22:42:13,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-11 22:42:13,146 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-11 22:42:13,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:13,150 INFO L225 Difference]: With dead ends: 5073 [2024-11-11 22:42:13,150 INFO L226 Difference]: Without dead ends: 4213 [2024-11-11 22:42:13,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=394, Invalid=1246, Unknown=0, NotChecked=0, Total=1640 [2024-11-11 22:42:13,152 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 15948 mSDsluCounter, 3229 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15948 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:13,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15948 Valid, 4737 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 22:42:13,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4213 states. [2024-11-11 22:42:13,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4213 to 4033. [2024-11-11 22:42:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 4031 states have (on average 1.4026296204415778) internal successors, (5654), 4032 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states 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 22:42:13,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5654 transitions. [2024-11-11 22:42:13,213 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5654 transitions. Word has length 86 [2024-11-11 22:42:13,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:13,213 INFO L471 AbstractCegarLoop]: Abstraction has 4033 states and 5654 transitions. [2024-11-11 22:42:13,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states 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 22:42:13,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5654 transitions. [2024-11-11 22:42:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-11 22:42:13,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:13,214 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:13,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 22:42:13,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-11 22:42:13,415 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:13,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash -629409436, now seen corresponding path program 1 times [2024-11-11 22:42:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:13,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10101095] [2024-11-11 22:42:13,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:13,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:13,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:13,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10101095] [2024-11-11 22:42:13,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10101095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:42:13,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162217108] [2024-11-11 22:42:13,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:13,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:42:13,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:42:13,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:42:13,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 22:42:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:14,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-11 22:42:14,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:42:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:15,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:42:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:16,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162217108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:42:16,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:42:16,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 12] total 34 [2024-11-11 22:42:16,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267291292] [2024-11-11 22:42:16,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:42:16,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-11 22:42:16,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:16,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-11 22:42:16,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=932, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:42:16,126 INFO L87 Difference]: Start difference. First operand 4033 states and 5654 transitions. Second operand has 34 states, 34 states have (on average 6.5588235294117645) internal successors, (223), 34 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 22:42:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:17,669 INFO L93 Difference]: Finished difference Result 10941 states and 14667 transitions. [2024-11-11 22:42:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-11 22:42:17,669 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.5588235294117645) internal successors, (223), 34 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-11 22:42:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:17,678 INFO L225 Difference]: With dead ends: 10941 [2024-11-11 22:42:17,678 INFO L226 Difference]: Without dead ends: 8644 [2024-11-11 22:42:17,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=938, Invalid=3222, Unknown=0, NotChecked=0, Total=4160 [2024-11-11 22:42:17,683 INFO L435 NwaCegarLoop]: 1531 mSDtfsCounter, 16120 mSDsluCounter, 9796 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16120 SdHoareTripleChecker+Valid, 11327 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:17,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16120 Valid, 11327 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:42:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8644 states. [2024-11-11 22:42:17,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8644 to 8478. [2024-11-11 22:42:17,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8478 states, 8476 states have (on average 1.3430863614912694) internal successors, (11384), 8477 states have internal predecessors, (11384), 0 states have call successors, (0), 0 states 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 22:42:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8478 states to 8478 states and 11384 transitions. [2024-11-11 22:42:17,868 INFO L78 Accepts]: Start accepts. Automaton has 8478 states and 11384 transitions. Word has length 87 [2024-11-11 22:42:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:17,868 INFO L471 AbstractCegarLoop]: Abstraction has 8478 states and 11384 transitions. [2024-11-11 22:42:17,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.5588235294117645) internal successors, (223), 34 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 22:42:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8478 states and 11384 transitions. [2024-11-11 22:42:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-11 22:42:17,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:17,869 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:17,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 22:42:18,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-11 22:42:18,070 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:18,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:18,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1667542172, now seen corresponding path program 1 times [2024-11-11 22:42:18,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:18,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887467585] [2024-11-11 22:42:18,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:18,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:18,611 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:18,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:18,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887467585] [2024-11-11 22:42:18,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887467585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:42:18,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947758204] [2024-11-11 22:42:18,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:18,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:42:18,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:42:18,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:42:18,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 22:42:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:18,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-11 22:42:18,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:42:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:19,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:42:19,670 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:19,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947758204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:42:19,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:42:19,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-11 22:42:19,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116581456] [2024-11-11 22:42:19,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:42:19,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-11 22:42:19,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:19,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-11 22:42:19,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2024-11-11 22:42:19,671 INFO L87 Difference]: Start difference. First operand 8478 states and 11384 transitions. Second operand has 28 states, 28 states have (on average 7.892857142857143) internal successors, (221), 27 states have internal predecessors, (221), 0 states have call successors, (0), 0 states 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 22:42:21,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:21,355 INFO L93 Difference]: Finished difference Result 37390 states and 48889 transitions. [2024-11-11 22:42:21,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:42:21,356 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.892857142857143) internal successors, (221), 27 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-11 22:42:21,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:21,391 INFO L225 Difference]: With dead ends: 37390 [2024-11-11 22:42:21,391 INFO L226 Difference]: Without dead ends: 31169 [2024-11-11 22:42:21,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=651, Invalid=2541, Unknown=0, NotChecked=0, Total=3192 [2024-11-11 22:42:21,405 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 17617 mSDsluCounter, 7993 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17617 SdHoareTripleChecker+Valid, 9501 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:21,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17617 Valid, 9501 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:42:21,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31169 states. [2024-11-11 22:42:22,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31169 to 28659. [2024-11-11 22:42:22,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28659 states, 28657 states have (on average 1.297937676658408) internal successors, (37195), 28658 states have internal predecessors, (37195), 0 states have call successors, (0), 0 states 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 22:42:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28659 states to 28659 states and 37195 transitions. [2024-11-11 22:42:22,411 INFO L78 Accepts]: Start accepts. Automaton has 28659 states and 37195 transitions. Word has length 87 [2024-11-11 22:42:22,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:22,411 INFO L471 AbstractCegarLoop]: Abstraction has 28659 states and 37195 transitions. [2024-11-11 22:42:22,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.892857142857143) internal successors, (221), 27 states have internal predecessors, (221), 0 states have call successors, (0), 0 states 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 22:42:22,411 INFO L276 IsEmpty]: Start isEmpty. Operand 28659 states and 37195 transitions. [2024-11-11 22:42:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-11 22:42:22,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:22,413 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:22,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 22:42:22,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:42:22,614 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:22,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:22,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1475314030, now seen corresponding path program 1 times [2024-11-11 22:42:22,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:22,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681038814] [2024-11-11 22:42:22,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:22,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:22,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:22,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681038814] [2024-11-11 22:42:22,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681038814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:42:22,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072559445] [2024-11-11 22:42:22,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:22,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:42:22,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:42:22,946 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:42:22,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 22:42:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:23,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-11 22:42:23,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:42:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:23,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:42:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:24,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072559445] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:42:24,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:42:24,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-11 22:42:24,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857091309] [2024-11-11 22:42:24,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:42:24,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-11 22:42:24,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:24,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-11 22:42:24,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-11 22:42:24,062 INFO L87 Difference]: Start difference. First operand 28659 states and 37195 transitions. Second operand has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states 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 22:42:26,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:26,316 INFO L93 Difference]: Finished difference Result 84035 states and 108686 transitions. [2024-11-11 22:42:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-11 22:42:26,317 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-11 22:42:26,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:26,381 INFO L225 Difference]: With dead ends: 84035 [2024-11-11 22:42:26,381 INFO L226 Difference]: Without dead ends: 57740 [2024-11-11 22:42:26,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=677, Invalid=2515, Unknown=0, NotChecked=0, Total=3192 [2024-11-11 22:42:26,395 INFO L435 NwaCegarLoop]: 1534 mSDtfsCounter, 15869 mSDsluCounter, 5372 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15869 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:26,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15869 Valid, 6906 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:42:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57740 states. [2024-11-11 22:42:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57740 to 54296. [2024-11-11 22:42:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54296 states, 54294 states have (on average 1.2694957085497476) internal successors, (68926), 54295 states have internal predecessors, (68926), 0 states have call successors, (0), 0 states 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 22:42:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54296 states to 54296 states and 68926 transitions. [2024-11-11 22:42:27,846 INFO L78 Accepts]: Start accepts. Automaton has 54296 states and 68926 transitions. Word has length 88 [2024-11-11 22:42:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:27,846 INFO L471 AbstractCegarLoop]: Abstraction has 54296 states and 68926 transitions. [2024-11-11 22:42:27,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states 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 22:42:27,846 INFO L276 IsEmpty]: Start isEmpty. Operand 54296 states and 68926 transitions. [2024-11-11 22:42:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:42:27,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:27,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:27,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-11 22:42:28,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-11 22:42:28,054 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:28,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:28,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1712352226, now seen corresponding path program 1 times [2024-11-11 22:42:28,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:28,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265194653] [2024-11-11 22:42:28,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:28,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:31,157 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:42:31,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265194653] [2024-11-11 22:42:31,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265194653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:42:31,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979581812] [2024-11-11 22:42:31,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:31,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:42:31,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:42:31,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:42:31,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 22:42:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:42:31,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-11 22:42:31,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:42:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:32,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:42:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:42:32,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979581812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:42:32,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:42:32,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 12, 12] total 52 [2024-11-11 22:42:32,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816275629] [2024-11-11 22:42:32,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:42:32,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-11 22:42:32,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:42:32,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-11 22:42:32,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=2466, Unknown=0, NotChecked=0, Total=2652 [2024-11-11 22:42:32,857 INFO L87 Difference]: Start difference. First operand 54296 states and 68926 transitions. Second operand has 52 states, 52 states have (on average 4.673076923076923) internal successors, (243), 52 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 22:42:57,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:42:57,791 INFO L93 Difference]: Finished difference Result 95971 states and 121368 transitions. [2024-11-11 22:42:57,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2024-11-11 22:42:57,791 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.673076923076923) internal successors, (243), 52 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-11 22:42:57,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:42:57,884 INFO L225 Difference]: With dead ends: 95971 [2024-11-11 22:42:57,885 INFO L226 Difference]: Without dead ends: 79376 [2024-11-11 22:42:57,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18473 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=8435, Invalid=43777, Unknown=0, NotChecked=0, Total=52212 [2024-11-11 22:42:57,918 INFO L435 NwaCegarLoop]: 1703 mSDtfsCounter, 26074 mSDsluCounter, 37962 mSDsCounter, 0 mSdLazyCounter, 9051 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26074 SdHoareTripleChecker+Valid, 39665 SdHoareTripleChecker+Invalid, 9191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 9051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:42:57,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26074 Valid, 39665 Invalid, 9191 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [140 Valid, 9051 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-11 22:42:57,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79376 states. [2024-11-11 22:42:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79376 to 51866. [2024-11-11 22:42:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51866 states, 51864 states have (on average 1.2687991670522907) internal successors, (65805), 51865 states have internal predecessors, (65805), 0 states have call successors, (0), 0 states 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 22:42:59,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51866 states to 51866 states and 65805 transitions. [2024-11-11 22:42:59,607 INFO L78 Accepts]: Start accepts. Automaton has 51866 states and 65805 transitions. Word has length 90 [2024-11-11 22:42:59,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:42:59,607 INFO L471 AbstractCegarLoop]: Abstraction has 51866 states and 65805 transitions. [2024-11-11 22:42:59,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.673076923076923) internal successors, (243), 52 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 22:42:59,607 INFO L276 IsEmpty]: Start isEmpty. Operand 51866 states and 65805 transitions. [2024-11-11 22:42:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:42:59,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:42:59,610 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:42:59,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 22:42:59,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-11 22:42:59,810 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:42:59,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:42:59,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1763978594, now seen corresponding path program 1 times [2024-11-11 22:42:59,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:42:59,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673383599] [2024-11-11 22:42:59,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:42:59,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:42:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:43:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:43:00,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:43:00,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673383599] [2024-11-11 22:43:00,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673383599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:43:00,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425571501] [2024-11-11 22:43:00,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:43:00,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:43:00,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:43:00,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:43:00,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 22:43:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:43:01,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-11 22:43:01,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:43:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:43:03,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:43:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:43:05,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425571501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:43:05,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:43:05,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 23] total 60 [2024-11-11 22:43:05,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330202812] [2024-11-11 22:43:05,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:43:05,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-11 22:43:05,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:43:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-11 22:43:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=3231, Unknown=0, NotChecked=0, Total=3540 [2024-11-11 22:43:05,579 INFO L87 Difference]: Start difference. First operand 51866 states and 65805 transitions. Second operand has 60 states, 60 states have (on average 4.15) internal successors, (249), 60 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)