./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 726c27beb485f609d605f0581621ddf01187954349267fe751f77dd8e4a5e6ab --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:52:50,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:52:50,286 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:52:50,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:52:50,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:52:50,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:52:50,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:52:50,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:52:50,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:52:50,321 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:52:50,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:52:50,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:52:50,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:52:50,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:52:50,322 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:52:50,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:52:50,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:52:50,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:52:50,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:52:50,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:52:50,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:52:50,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:52:50,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:52:50,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:52:50,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:52:50,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:52:50,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:52:50,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:52:50,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:52:50,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:52:50,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:52:50,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:52:50,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:52:50,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:52:50,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:52:50,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:52:50,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:52:50,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:52:50,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:52:50,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:52:50,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:52:50,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:52:50,333 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 726c27beb485f609d605f0581621ddf01187954349267fe751f77dd8e4a5e6ab [2024-10-11 04:52:50,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:52:50,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:52:50,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:52:50,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:52:50,582 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:52:50,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-10-11 04:52:51,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:52:52,203 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:52:52,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-10-11 04:52:52,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6228701bf/4afa39e48a164664adadaeb4465866b5/FLAG33cf0468c [2024-10-11 04:52:52,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6228701bf/4afa39e48a164664adadaeb4465866b5 [2024-10-11 04:52:52,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:52:52,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:52:52,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:52:52,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:52:52,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:52:52,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:52" (1/1) ... [2024-10-11 04:52:52,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512630eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:52, skipping insertion in model container [2024-10-11 04:52:52,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:52" (1/1) ... [2024-10-11 04:52:52,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:52:52,730 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[15510,15523] [2024-10-11 04:52:52,780 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[21065,21078] [2024-10-11 04:52:53,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:52:53,258 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:52:53,291 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[15510,15523] [2024-10-11 04:52:53,302 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[21065,21078] [2024-10-11 04:52:53,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:52:53,633 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:52:53,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53 WrapperNode [2024-10-11 04:52:53,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:52:53,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:52:53,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:52:53,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:52:53,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:53,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,026 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-10-11 04:52:54,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:52:54,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:52:54,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:52:54,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:52:54,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,269 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 04:52:54,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:52:54,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:52:54,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:52:54,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:52:54,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (1/1) ... [2024-10-11 04:52:54,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:52:54,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:52:54,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:52:54,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:52:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:52:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:52:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:52:54,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:52:54,731 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:52:54,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:52:58,163 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-10-11 04:52:58,164 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:52:58,219 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:52:58,220 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 04:52:58,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:58 BoogieIcfgContainer [2024-10-11 04:52:58,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:52:58,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:52:58,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:52:58,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:52:58,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:52:52" (1/3) ... [2024-10-11 04:52:58,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ab9e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:58, skipping insertion in model container [2024-10-11 04:52:58,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:53" (2/3) ... [2024-10-11 04:52:58,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ab9e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:58, skipping insertion in model container [2024-10-11 04:52:58,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:58" (3/3) ... [2024-10-11 04:52:58,231 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-10-11 04:52:58,246 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:52:58,246 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:52:58,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:52:58,336 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;@765ced75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:52:58,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:52:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:58,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 04:52:58,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:58,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:58,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:58,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash -150308239, now seen corresponding path program 1 times [2024-10-11 04:52:58,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:58,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125105660] [2024-10-11 04:52:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:58,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:58,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125105660] [2024-10-11 04:52:58,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125105660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:58,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:58,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:52:58,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690453435] [2024-10-11 04:52:58,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:58,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 04:52:58,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 04:52:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:52:58,631 INFO L87 Difference]: Start difference. First operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:58,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:58,706 INFO L93 Difference]: Finished difference Result 1657 states and 3259 transitions. [2024-10-11 04:52:58,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 04:52:58,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-10-11 04:52:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:58,734 INFO L225 Difference]: With dead ends: 1657 [2024-10-11 04:52:58,735 INFO L226 Difference]: Without dead ends: 847 [2024-10-11 04:52:58,740 INFO L431 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 [2024-10-11 04:52:58,743 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:58,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1601 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-10-11 04:52:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2024-10-11 04:52:58,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 1.8958579881656805) internal successors, (1602), 846 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1602 transitions. [2024-10-11 04:52:58,830 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1602 transitions. Word has length 23 [2024-10-11 04:52:58,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:58,831 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1602 transitions. [2024-10-11 04:52:58,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:58,832 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1602 transitions. [2024-10-11 04:52:58,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 04:52:58,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:58,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:58,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:52:58,833 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:58,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1839251981, now seen corresponding path program 1 times [2024-10-11 04:52:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:58,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168634721] [2024-10-11 04:52:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:58,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:59,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:59,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:59,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168634721] [2024-10-11 04:52:59,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168634721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:59,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:59,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:52:59,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298654325] [2024-10-11 04:52:59,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:59,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:52:59,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:59,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:52:59,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:52:59,023 INFO L87 Difference]: Start difference. First operand 847 states and 1602 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:59,118 INFO L93 Difference]: Finished difference Result 899 states and 1684 transitions. [2024-10-11 04:52:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:52:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-10-11 04:52:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:59,122 INFO L225 Difference]: With dead ends: 899 [2024-10-11 04:52:59,122 INFO L226 Difference]: Without dead ends: 847 [2024-10-11 04:52:59,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:52:59,124 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:59,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4753 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:52:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-10-11 04:52:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2024-10-11 04:52:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 1.8485207100591716) internal successors, (1562), 846 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:59,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1562 transitions. [2024-10-11 04:52:59,142 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1562 transitions. Word has length 23 [2024-10-11 04:52:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:59,142 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1562 transitions. [2024-10-11 04:52:59,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1562 transitions. [2024-10-11 04:52:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-11 04:52:59,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:59,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:59,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:52:59,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:59,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1370291631, now seen corresponding path program 1 times [2024-10-11 04:52:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:59,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449577060] [2024-10-11 04:52:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:59,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:59,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:59,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:59,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449577060] [2024-10-11 04:52:59,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449577060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:59,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:59,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:52:59,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380307140] [2024-10-11 04:52:59,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:59,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:59,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:59,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:59,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:59,243 INFO L87 Difference]: Start difference. First operand 847 states and 1562 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:01,892 INFO L93 Difference]: Finished difference Result 2351 states and 4435 transitions. [2024-10-11 04:53:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:01,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-11 04:53:01,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:01,906 INFO L225 Difference]: With dead ends: 2351 [2024-10-11 04:53:01,906 INFO L226 Difference]: Without dead ends: 1598 [2024-10-11 04:53:01,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:01,910 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 894 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:01,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 548 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-11 04:53:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-10-11 04:53:01,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1598. [2024-10-11 04:53:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1596 states have (on average 1.6221804511278195) internal successors, (2589), 1597 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2589 transitions. [2024-10-11 04:53:01,945 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2589 transitions. Word has length 47 [2024-10-11 04:53:01,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:01,945 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2589 transitions. [2024-10-11 04:53:01,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:01,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2589 transitions. [2024-10-11 04:53:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 04:53:01,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:01,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:01,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:53:01,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:01,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:01,948 INFO L85 PathProgramCache]: Analyzing trace with hash -138572409, now seen corresponding path program 1 times [2024-10-11 04:53:01,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:01,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031465000] [2024-10-11 04:53:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:01,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:02,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:02,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:02,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031465000] [2024-10-11 04:53:02,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031465000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:02,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:02,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:02,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583146422] [2024-10-11 04:53:02,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:02,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:02,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:02,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:02,169 INFO L87 Difference]: Start difference. First operand 1598 states and 2589 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:02,440 INFO L93 Difference]: Finished difference Result 2186 states and 3537 transitions. [2024-10-11 04:53:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 04:53:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 04:53:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:02,448 INFO L225 Difference]: With dead ends: 2186 [2024-10-11 04:53:02,449 INFO L226 Difference]: Without dead ends: 2137 [2024-10-11 04:53:02,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:53:02,451 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 9829 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9829 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:02,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9829 Valid, 3039 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:02,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2024-10-11 04:53:02,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 1645. [2024-10-11 04:53:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1643 states have (on average 1.6220328667072428) internal successors, (2665), 1644 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2665 transitions. [2024-10-11 04:53:02,482 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2665 transitions. Word has length 62 [2024-10-11 04:53:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:02,483 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 2665 transitions. [2024-10-11 04:53:02,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2665 transitions. [2024-10-11 04:53:02,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 04:53:02,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:02,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:02,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:53:02,485 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:02,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:02,486 INFO L85 PathProgramCache]: Analyzing trace with hash -157852617, now seen corresponding path program 1 times [2024-10-11 04:53:02,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:02,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277434990] [2024-10-11 04:53:02,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:02,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:02,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277434990] [2024-10-11 04:53:02,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277434990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:02,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:02,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547653393] [2024-10-11 04:53:02,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:02,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:02,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:02,588 INFO L87 Difference]: Start difference. First operand 1645 states and 2665 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:02,624 INFO L93 Difference]: Finished difference Result 1826 states and 2956 transitions. [2024-10-11 04:53:02,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:02,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-11 04:53:02,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:02,630 INFO L225 Difference]: With dead ends: 1826 [2024-10-11 04:53:02,631 INFO L226 Difference]: Without dead ends: 1730 [2024-10-11 04:53:02,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:02,632 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 1490 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:02,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1626 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:02,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-10-11 04:53:02,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1726. [2024-10-11 04:53:02,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.6200696055684454) internal successors, (2793), 1725 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2793 transitions. [2024-10-11 04:53:02,658 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2793 transitions. Word has length 64 [2024-10-11 04:53:02,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:02,659 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2793 transitions. [2024-10-11 04:53:02,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2793 transitions. [2024-10-11 04:53:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 04:53:02,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:02,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:02,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:53:02,661 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:02,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash -155707665, now seen corresponding path program 1 times [2024-10-11 04:53:02,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:02,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199512334] [2024-10-11 04:53:02,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:02,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:02,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:02,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199512334] [2024-10-11 04:53:02,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199512334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:02,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:02,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:02,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613437649] [2024-10-11 04:53:02,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:02,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:02,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:03,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:03,001 INFO L87 Difference]: Start difference. First operand 1726 states and 2793 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:03,222 INFO L93 Difference]: Finished difference Result 1905 states and 3077 transitions. [2024-10-11 04:53:03,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:03,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-11 04:53:03,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:03,231 INFO L225 Difference]: With dead ends: 1905 [2024-10-11 04:53:03,232 INFO L226 Difference]: Without dead ends: 1728 [2024-10-11 04:53:03,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-11 04:53:03,233 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 1533 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:03,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1533 Valid, 2004 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:03,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-10-11 04:53:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2024-10-11 04:53:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.618909512761021) internal successors, (2791), 1725 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2791 transitions. [2024-10-11 04:53:03,258 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2791 transitions. Word has length 64 [2024-10-11 04:53:03,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:03,259 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2791 transitions. [2024-10-11 04:53:03,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2791 transitions. [2024-10-11 04:53:03,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 04:53:03,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:03,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:03,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:53:03,261 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:03,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:03,261 INFO L85 PathProgramCache]: Analyzing trace with hash -660670881, now seen corresponding path program 1 times [2024-10-11 04:53:03,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:03,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077960996] [2024-10-11 04:53:03,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:03,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:03,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:03,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077960996] [2024-10-11 04:53:03,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077960996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:03,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:03,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:53:03,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266921804] [2024-10-11 04:53:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:03,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:53:03,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:03,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:53:03,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:53:03,390 INFO L87 Difference]: Start difference. First operand 1726 states and 2791 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:03,470 INFO L93 Difference]: Finished difference Result 1732 states and 2798 transitions. [2024-10-11 04:53:03,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:53:03,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-11 04:53:03,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:03,476 INFO L225 Difference]: With dead ends: 1732 [2024-10-11 04:53:03,476 INFO L226 Difference]: Without dead ends: 1730 [2024-10-11 04:53:03,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:53:03,478 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 0 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:03,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4666 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:03,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-10-11 04:53:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1730. [2024-10-11 04:53:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.6168981481481481) internal successors, (2794), 1729 states have internal predecessors, (2794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2794 transitions. [2024-10-11 04:53:03,503 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2794 transitions. Word has length 65 [2024-10-11 04:53:03,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:03,504 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2794 transitions. [2024-10-11 04:53:03,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2794 transitions. [2024-10-11 04:53:03,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:03,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:03,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:03,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:53:03,505 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:03,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash -347651057, now seen corresponding path program 1 times [2024-10-11 04:53:03,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:03,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174958194] [2024-10-11 04:53:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:03,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:03,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174958194] [2024-10-11 04:53:03,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174958194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:03,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:03,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:03,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617833291] [2024-10-11 04:53:03,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:03,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:03,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:03,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:03,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:03,571 INFO L87 Difference]: Start difference. First operand 1730 states and 2794 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:03,608 INFO L93 Difference]: Finished difference Result 2076 states and 3334 transitions. [2024-10-11 04:53:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:03,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:03,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:03,615 INFO L225 Difference]: With dead ends: 2076 [2024-10-11 04:53:03,615 INFO L226 Difference]: Without dead ends: 1895 [2024-10-11 04:53:03,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:03,619 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1503 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1691 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 [2024-10-11 04:53:03,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1691 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:03,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2024-10-11 04:53:03,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893. [2024-10-11 04:53:03,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1891 states have (on average 1.6102591221575886) internal successors, (3045), 1892 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 3045 transitions. [2024-10-11 04:53:03,653 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 3045 transitions. Word has length 66 [2024-10-11 04:53:03,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:03,653 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 3045 transitions. [2024-10-11 04:53:03,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 3045 transitions. [2024-10-11 04:53:03,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:03,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:03,654 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:03,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:53:03,655 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:03,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash -307707121, now seen corresponding path program 1 times [2024-10-11 04:53:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:03,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017195204] [2024-10-11 04:53:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:03,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:03,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:03,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017195204] [2024-10-11 04:53:03,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017195204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:03,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:03,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720299313] [2024-10-11 04:53:03,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:03,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:03,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:03,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:03,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:03,699 INFO L87 Difference]: Start difference. First operand 1893 states and 3045 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:03,742 INFO L93 Difference]: Finished difference Result 2549 states and 4059 transitions. [2024-10-11 04:53:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:03,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:03,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:03,749 INFO L225 Difference]: With dead ends: 2549 [2024-10-11 04:53:03,750 INFO L226 Difference]: Without dead ends: 2205 [2024-10-11 04:53:03,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:03,751 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1501 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1693 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 [2024-10-11 04:53:03,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2024-10-11 04:53:03,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2203. [2024-10-11 04:53:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 2201 states have (on average 1.5970013630168105) internal successors, (3515), 2202 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 3515 transitions. [2024-10-11 04:53:03,793 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 3515 transitions. Word has length 66 [2024-10-11 04:53:03,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:03,793 INFO L471 AbstractCegarLoop]: Abstraction has 2203 states and 3515 transitions. [2024-10-11 04:53:03,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 3515 transitions. [2024-10-11 04:53:03,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:03,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:03,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:03,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:53:03,795 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:03,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:03,795 INFO L85 PathProgramCache]: Analyzing trace with hash -933363185, now seen corresponding path program 1 times [2024-10-11 04:53:03,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:03,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263635131] [2024-10-11 04:53:03,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:03,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:03,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:03,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263635131] [2024-10-11 04:53:03,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263635131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:03,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:03,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:03,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449308931] [2024-10-11 04:53:03,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:03,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:03,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:03,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:03,849 INFO L87 Difference]: Start difference. First operand 2203 states and 3515 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:03,890 INFO L93 Difference]: Finished difference Result 3447 states and 5413 transitions. [2024-10-11 04:53:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:03,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:03,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:03,899 INFO L225 Difference]: With dead ends: 3447 [2024-10-11 04:53:03,899 INFO L226 Difference]: Without dead ends: 2793 [2024-10-11 04:53:03,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:03,901 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 1499 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1695 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 [2024-10-11 04:53:03,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2024-10-11 04:53:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2791. [2024-10-11 04:53:03,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2789 states have (on average 1.5743994263176766) internal successors, (4391), 2790 states have internal predecessors, (4391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4391 transitions. [2024-10-11 04:53:03,955 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4391 transitions. Word has length 66 [2024-10-11 04:53:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:03,956 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 4391 transitions. [2024-10-11 04:53:03,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4391 transitions. [2024-10-11 04:53:03,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:03,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:03,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:03,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:53:03,958 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:03,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:03,959 INFO L85 PathProgramCache]: Analyzing trace with hash -44629745, now seen corresponding path program 1 times [2024-10-11 04:53:03,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:03,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598522802] [2024-10-11 04:53:03,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:03,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:04,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:04,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:04,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598522802] [2024-10-11 04:53:04,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598522802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:04,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:04,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:04,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101933399] [2024-10-11 04:53:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:04,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:04,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:04,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:04,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:04,005 INFO L87 Difference]: Start difference. First operand 2791 states and 4391 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:04,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:04,059 INFO L93 Difference]: Finished difference Result 5147 states and 7929 transitions. [2024-10-11 04:53:04,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:04,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:04,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:04,071 INFO L225 Difference]: With dead ends: 5147 [2024-10-11 04:53:04,072 INFO L226 Difference]: Without dead ends: 3905 [2024-10-11 04:53:04,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:04,075 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 1497 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1697 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 [2024-10-11 04:53:04,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:04,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2024-10-11 04:53:04,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3903. [2024-10-11 04:53:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3903 states, 3901 states have (on average 1.5419123301717508) internal successors, (6015), 3902 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 6015 transitions. [2024-10-11 04:53:04,152 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 6015 transitions. Word has length 66 [2024-10-11 04:53:04,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:04,153 INFO L471 AbstractCegarLoop]: Abstraction has 3903 states and 6015 transitions. [2024-10-11 04:53:04,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 6015 transitions. [2024-10-11 04:53:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:04,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:04,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:04,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:53:04,154 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:04,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:04,154 INFO L85 PathProgramCache]: Analyzing trace with hash -79067889, now seen corresponding path program 1 times [2024-10-11 04:53:04,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:04,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707633151] [2024-10-11 04:53:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:04,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:04,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:04,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707633151] [2024-10-11 04:53:04,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707633151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:04,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:04,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:04,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216912031] [2024-10-11 04:53:04,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:04,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:04,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:04,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:04,204 INFO L87 Difference]: Start difference. First operand 3903 states and 6015 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:04,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:04,354 INFO L93 Difference]: Finished difference Result 8355 states and 12577 transitions. [2024-10-11 04:53:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:04,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:04,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:04,380 INFO L225 Difference]: With dead ends: 8355 [2024-10-11 04:53:04,380 INFO L226 Difference]: Without dead ends: 6001 [2024-10-11 04:53:04,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:04,388 INFO L432 NwaCegarLoop]: 1614 mSDtfsCounter, 1505 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:04,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:04,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2024-10-11 04:53:04,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 5999. [2024-10-11 04:53:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5997 states have (on average 1.5019176254794064) internal successors, (9007), 5998 states have internal predecessors, (9007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 9007 transitions. [2024-10-11 04:53:04,549 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 9007 transitions. Word has length 66 [2024-10-11 04:53:04,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:04,549 INFO L471 AbstractCegarLoop]: Abstraction has 5999 states and 9007 transitions. [2024-10-11 04:53:04,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:04,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 9007 transitions. [2024-10-11 04:53:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 04:53:04,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:04,550 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:04,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:53:04,550 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:04,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:04,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1522612916, now seen corresponding path program 1 times [2024-10-11 04:53:04,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:04,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019713677] [2024-10-11 04:53:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:04,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:04,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:04,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019713677] [2024-10-11 04:53:04,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019713677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:04,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:04,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:04,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967175099] [2024-10-11 04:53:04,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:04,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:04,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:04,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:04,603 INFO L87 Difference]: Start difference. First operand 5999 states and 9007 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-10-11 04:53:04,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:04,757 INFO L93 Difference]: Finished difference Result 10614 states and 15861 transitions. [2024-10-11 04:53:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:04,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-11 04:53:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:04,773 INFO L225 Difference]: With dead ends: 10614 [2024-10-11 04:53:04,773 INFO L226 Difference]: Without dead ends: 8115 [2024-10-11 04:53:04,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:04,781 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1504 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1698 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 [2024-10-11 04:53:04,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2024-10-11 04:53:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 8113. [2024-10-11 04:53:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8113 states, 8111 states have (on average 1.485513500184934) internal successors, (12049), 8112 states have internal predecessors, (12049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8113 states to 8113 states and 12049 transitions. [2024-10-11 04:53:05,027 INFO L78 Accepts]: Start accepts. Automaton has 8113 states and 12049 transitions. Word has length 68 [2024-10-11 04:53:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:05,027 INFO L471 AbstractCegarLoop]: Abstraction has 8113 states and 12049 transitions. [2024-10-11 04:53:05,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-10-11 04:53:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8113 states and 12049 transitions. [2024-10-11 04:53:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:05,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:05,029 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:05,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:53:05,030 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:05,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:05,030 INFO L85 PathProgramCache]: Analyzing trace with hash 443992391, now seen corresponding path program 1 times [2024-10-11 04:53:05,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:05,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321633409] [2024-10-11 04:53:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:05,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:05,194 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 04:53:05,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:05,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321633409] [2024-10-11 04:53:05,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321633409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:05,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:05,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:05,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553291817] [2024-10-11 04:53:05,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:05,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:05,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:05,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:05,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:05,196 INFO L87 Difference]: Start difference. First operand 8113 states and 12049 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:05,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:05,938 INFO L93 Difference]: Finished difference Result 48831 states and 71160 transitions. [2024-10-11 04:53:05,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:05,939 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:05,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:06,014 INFO L225 Difference]: With dead ends: 48831 [2024-10-11 04:53:06,014 INFO L226 Difference]: Without dead ends: 42269 [2024-10-11 04:53:06,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:06,036 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8086 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8086 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:06,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8086 Valid, 3866 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:06,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42269 states. [2024-10-11 04:53:06,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42269 to 14673. [2024-10-11 04:53:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14673 states, 14671 states have (on average 1.4647263308567924) internal successors, (21489), 14672 states have internal predecessors, (21489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14673 states to 14673 states and 21489 transitions. [2024-10-11 04:53:06,641 INFO L78 Accepts]: Start accepts. Automaton has 14673 states and 21489 transitions. Word has length 86 [2024-10-11 04:53:06,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:06,642 INFO L471 AbstractCegarLoop]: Abstraction has 14673 states and 21489 transitions. [2024-10-11 04:53:06,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 14673 states and 21489 transitions. [2024-10-11 04:53:06,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:06,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:06,644 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:06,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:53:06,645 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:06,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash 483936327, now seen corresponding path program 1 times [2024-10-11 04:53:06,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:06,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035070275] [2024-10-11 04:53:06,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:06,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 04:53:06,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:06,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035070275] [2024-10-11 04:53:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035070275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:06,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:06,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:06,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844940138] [2024-10-11 04:53:06,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:06,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:06,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:06,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:06,800 INFO L87 Difference]: Start difference. First operand 14673 states and 21489 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:07,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:07,610 INFO L93 Difference]: Finished difference Result 55391 states and 80600 transitions. [2024-10-11 04:53:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 86 [2024-10-11 04:53:07,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:07,700 INFO L225 Difference]: With dead ends: 55391 [2024-10-11 04:53:07,700 INFO L226 Difference]: Without dead ends: 48829 [2024-10-11 04:53:07,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:07,722 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 8138 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8138 SdHoareTripleChecker+Valid, 3766 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:07,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8138 Valid, 3766 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:07,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48829 states. [2024-10-11 04:53:08,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48829 to 24529. [2024-10-11 04:53:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24529 states, 24527 states have (on average 1.4501977412647287) internal successors, (35569), 24528 states have internal predecessors, (35569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24529 states to 24529 states and 35569 transitions. [2024-10-11 04:53:08,767 INFO L78 Accepts]: Start accepts. Automaton has 24529 states and 35569 transitions. Word has length 86 [2024-10-11 04:53:08,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:08,767 INFO L471 AbstractCegarLoop]: Abstraction has 24529 states and 35569 transitions. [2024-10-11 04:53:08,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 24529 states and 35569 transitions. [2024-10-11 04:53:08,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:08,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:08,771 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:08,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 04:53:08,772 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:08,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:08,772 INFO L85 PathProgramCache]: Analyzing trace with hash -141719737, now seen corresponding path program 1 times [2024-10-11 04:53:08,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:08,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402335643] [2024-10-11 04:53:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:08,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 04:53:08,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:08,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402335643] [2024-10-11 04:53:08,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402335643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:08,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:08,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:08,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492630025] [2024-10-11 04:53:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:08,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:08,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:08,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:08,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:08,970 INFO L87 Difference]: Start difference. First operand 24529 states and 35569 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:09,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:09,960 INFO L93 Difference]: Finished difference Result 61951 states and 90040 transitions. [2024-10-11 04:53:09,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:09,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:09,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:10,074 INFO L225 Difference]: With dead ends: 61951 [2024-10-11 04:53:10,075 INFO L226 Difference]: Without dead ends: 55389 [2024-10-11 04:53:10,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:10,097 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 8187 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8187 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:10,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8187 Valid, 3768 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:10,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55389 states. [2024-10-11 04:53:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55389 to 31089. [2024-10-11 04:53:11,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31089 states, 31087 states have (on average 1.4478399330910026) internal successors, (45009), 31088 states have internal predecessors, (45009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31089 states to 31089 states and 45009 transitions. [2024-10-11 04:53:11,127 INFO L78 Accepts]: Start accepts. Automaton has 31089 states and 45009 transitions. Word has length 86 [2024-10-11 04:53:11,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:11,127 INFO L471 AbstractCegarLoop]: Abstraction has 31089 states and 45009 transitions. [2024-10-11 04:53:11,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 31089 states and 45009 transitions. [2024-10-11 04:53:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:11,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:11,129 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:11,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 04:53:11,130 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:11,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 747013703, now seen corresponding path program 1 times [2024-10-11 04:53:11,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:11,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123269274] [2024-10-11 04:53:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:11,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 04:53:11,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:11,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123269274] [2024-10-11 04:53:11,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123269274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:11,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:11,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:11,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488136524] [2024-10-11 04:53:11,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:11,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:11,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:11,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:11,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:11,307 INFO L87 Difference]: Start difference. First operand 31089 states and 45009 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:12,279 INFO L93 Difference]: Finished difference Result 68511 states and 99480 transitions. [2024-10-11 04:53:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:12,380 INFO L225 Difference]: With dead ends: 68511 [2024-10-11 04:53:12,380 INFO L226 Difference]: Without dead ends: 61949 [2024-10-11 04:53:12,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:12,401 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8090 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8090 SdHoareTripleChecker+Valid, 3876 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:12,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8090 Valid, 3876 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61949 states. [2024-10-11 04:53:13,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61949 to 37649. [2024-10-11 04:53:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37649 states, 37647 states have (on average 1.4463038223497224) internal successors, (54449), 37648 states have internal predecessors, (54449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37649 states to 37649 states and 54449 transitions. [2024-10-11 04:53:13,689 INFO L78 Accepts]: Start accepts. Automaton has 37649 states and 54449 transitions. Word has length 86 [2024-10-11 04:53:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:13,690 INFO L471 AbstractCegarLoop]: Abstraction has 37649 states and 54449 transitions. [2024-10-11 04:53:13,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand 37649 states and 54449 transitions. [2024-10-11 04:53:13,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:13,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:13,693 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:13,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 04:53:13,693 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:13,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash 712575559, now seen corresponding path program 1 times [2024-10-11 04:53:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:13,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501646302] [2024-10-11 04:53:13,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:13,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 04:53:13,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:13,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501646302] [2024-10-11 04:53:13,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501646302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:13,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005971923] [2024-10-11 04:53:13,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:13,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:13,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:13,903 INFO L87 Difference]: Start difference. First operand 37649 states and 54449 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:15,279 INFO L93 Difference]: Finished difference Result 75071 states and 108920 transitions. [2024-10-11 04:53:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:15,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:15,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:15,371 INFO L225 Difference]: With dead ends: 75071 [2024-10-11 04:53:15,371 INFO L226 Difference]: Without dead ends: 68509 [2024-10-11 04:53:15,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:15,393 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8030 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8030 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:15,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8030 Valid, 4006 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68509 states. [2024-10-11 04:53:16,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68509 to 44209. [2024-10-11 04:53:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44209 states, 44207 states have (on average 1.4452236071210443) internal successors, (63889), 44208 states have internal predecessors, (63889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44209 states to 44209 states and 63889 transitions. [2024-10-11 04:53:16,569 INFO L78 Accepts]: Start accepts. Automaton has 44209 states and 63889 transitions. Word has length 86 [2024-10-11 04:53:16,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:16,569 INFO L471 AbstractCegarLoop]: Abstraction has 44209 states and 63889 transitions. [2024-10-11 04:53:16,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:16,570 INFO L276 IsEmpty]: Start isEmpty. Operand 44209 states and 63889 transitions. [2024-10-11 04:53:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 04:53:16,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:16,573 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:16,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 04:53:16,574 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:16,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:16,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1343316655, now seen corresponding path program 1 times [2024-10-11 04:53:16,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:16,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509194963] [2024-10-11 04:53:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:16,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:16,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:16,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509194963] [2024-10-11 04:53:16,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509194963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:16,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:16,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:16,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129262667] [2024-10-11 04:53:16,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:16,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:16,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:16,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:16,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:16,662 INFO L87 Difference]: Start difference. First operand 44209 states and 63889 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:17,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:17,372 INFO L93 Difference]: Finished difference Result 74186 states and 107593 transitions. [2024-10-11 04:53:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:17,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 04:53:17,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:17,415 INFO L225 Difference]: With dead ends: 74186 [2024-10-11 04:53:17,415 INFO L226 Difference]: Without dead ends: 31528 [2024-10-11 04:53:17,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:17,453 INFO L432 NwaCegarLoop]: 1607 mSDtfsCounter, 58 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:17,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3152 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31528 states. [2024-10-11 04:53:18,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31528 to 31526. [2024-10-11 04:53:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31526 states, 31524 states have (on average 1.452797868290826) internal successors, (45798), 31525 states have internal predecessors, (45798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31526 states to 31526 states and 45798 transitions. [2024-10-11 04:53:18,497 INFO L78 Accepts]: Start accepts. Automaton has 31526 states and 45798 transitions. Word has length 88 [2024-10-11 04:53:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:18,497 INFO L471 AbstractCegarLoop]: Abstraction has 31526 states and 45798 transitions. [2024-10-11 04:53:18,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 31526 states and 45798 transitions. [2024-10-11 04:53:18,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 04:53:18,499 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:18,500 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:18,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 04:53:18,500 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:18,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2082755052, now seen corresponding path program 1 times [2024-10-11 04:53:18,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:18,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582685121] [2024-10-11 04:53:18,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:18,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:53:18,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:18,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582685121] [2024-10-11 04:53:18,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582685121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:18,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:18,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:18,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304888235] [2024-10-11 04:53:18,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:18,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:18,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:18,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:18,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:18,696 INFO L87 Difference]: Start difference. First operand 31526 states and 45798 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:19,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:19,879 INFO L93 Difference]: Finished difference Result 59188 states and 86125 transitions. [2024-10-11 04:53:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 04:53:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:19,957 INFO L225 Difference]: With dead ends: 59188 [2024-10-11 04:53:19,957 INFO L226 Difference]: Without dead ends: 54578 [2024-10-11 04:53:19,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:19,976 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 8040 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8040 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:19,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8040 Valid, 3949 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54578 states. [2024-10-11 04:53:20,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54578 to 36134. [2024-10-11 04:53:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36134 states, 36132 states have (on average 1.4517325362559503) internal successors, (52454), 36133 states have internal predecessors, (52454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:20,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36134 states to 36134 states and 52454 transitions. [2024-10-11 04:53:20,993 INFO L78 Accepts]: Start accepts. Automaton has 36134 states and 52454 transitions. Word has length 88 [2024-10-11 04:53:20,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:20,994 INFO L471 AbstractCegarLoop]: Abstraction has 36134 states and 52454 transitions. [2024-10-11 04:53:20,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:20,994 INFO L276 IsEmpty]: Start isEmpty. Operand 36134 states and 52454 transitions. [2024-10-11 04:53:20,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 04:53:20,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:20,996 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:20,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 04:53:20,996 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:20,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:20,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1555080975, now seen corresponding path program 1 times [2024-10-11 04:53:20,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:20,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763838651] [2024-10-11 04:53:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:20,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:21,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:21,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763838651] [2024-10-11 04:53:21,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763838651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:21,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:21,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708318071] [2024-10-11 04:53:21,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:21,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:21,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:21,082 INFO L87 Difference]: Start difference. First operand 36134 states and 52454 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:21,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:21,508 INFO L93 Difference]: Finished difference Result 53418 states and 77416 transitions. [2024-10-11 04:53:21,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:21,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-11 04:53:21,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:21,535 INFO L225 Difference]: With dead ends: 53418 [2024-10-11 04:53:21,535 INFO L226 Difference]: Without dead ends: 18856 [2024-10-11 04:53:21,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:21,557 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 53 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:21,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3137 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:21,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18856 states. [2024-10-11 04:53:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18856 to 18854. [2024-10-11 04:53:21,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18854 states, 18852 states have (on average 1.4456821557394441) internal successors, (27254), 18853 states have internal predecessors, (27254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18854 states to 18854 states and 27254 transitions. [2024-10-11 04:53:21,959 INFO L78 Accepts]: Start accepts. Automaton has 18854 states and 27254 transitions. Word has length 89 [2024-10-11 04:53:21,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:21,959 INFO L471 AbstractCegarLoop]: Abstraction has 18854 states and 27254 transitions. [2024-10-11 04:53:21,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:21,960 INFO L276 IsEmpty]: Start isEmpty. Operand 18854 states and 27254 transitions. [2024-10-11 04:53:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 04:53:21,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:21,961 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:21,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 04:53:21,962 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:21,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:21,962 INFO L85 PathProgramCache]: Analyzing trace with hash 433774111, now seen corresponding path program 1 times [2024-10-11 04:53:21,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:21,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575508294] [2024-10-11 04:53:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:21,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:22,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:22,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575508294] [2024-10-11 04:53:22,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575508294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:22,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:22,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:22,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223572941] [2024-10-11 04:53:22,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:22,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:22,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:22,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:22,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:22,041 INFO L87 Difference]: Start difference. First operand 18854 states and 27254 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:22,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:22,238 INFO L93 Difference]: Finished difference Result 27498 states and 39616 transitions. [2024-10-11 04:53:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:22,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-10-11 04:53:22,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:22,254 INFO L225 Difference]: With dead ends: 27498 [2024-10-11 04:53:22,254 INFO L226 Difference]: Without dead ends: 10216 [2024-10-11 04:53:22,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:22,269 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 50 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:22,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3122 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10216 states. [2024-10-11 04:53:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10216 to 10214. [2024-10-11 04:53:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10214 states, 10212 states have (on average 1.4467293380336859) internal successors, (14774), 10213 states have internal predecessors, (14774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10214 states to 10214 states and 14774 transitions. [2024-10-11 04:53:22,685 INFO L78 Accepts]: Start accepts. Automaton has 10214 states and 14774 transitions. Word has length 91 [2024-10-11 04:53:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:22,685 INFO L471 AbstractCegarLoop]: Abstraction has 10214 states and 14774 transitions. [2024-10-11 04:53:22,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 10214 states and 14774 transitions. [2024-10-11 04:53:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 04:53:22,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:22,687 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:22,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 04:53:22,688 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:22,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:22,688 INFO L85 PathProgramCache]: Analyzing trace with hash 475149517, now seen corresponding path program 1 times [2024-10-11 04:53:22,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:22,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583258859] [2024-10-11 04:53:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:22,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:22,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583258859] [2024-10-11 04:53:22,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583258859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:22,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:22,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:22,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301715701] [2024-10-11 04:53:22,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:22,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:22,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:22,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:22,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:22,787 INFO L87 Difference]: Start difference. First operand 10214 states and 14774 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:22,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:22,946 INFO L93 Difference]: Finished difference Result 14538 states and 20896 transitions. [2024-10-11 04:53:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:22,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-10-11 04:53:22,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:22,957 INFO L225 Difference]: With dead ends: 14538 [2024-10-11 04:53:22,957 INFO L226 Difference]: Without dead ends: 5896 [2024-10-11 04:53:22,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:22,966 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 47 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:22,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3107 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2024-10-11 04:53:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5894. [2024-10-11 04:53:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 1.4585879158180584) internal successors, (8594), 5893 states have internal predecessors, (8594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8594 transitions. [2024-10-11 04:53:23,145 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8594 transitions. Word has length 93 [2024-10-11 04:53:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:23,145 INFO L471 AbstractCegarLoop]: Abstraction has 5894 states and 8594 transitions. [2024-10-11 04:53:23,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8594 transitions. [2024-10-11 04:53:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 04:53:23,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:23,147 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:23,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 04:53:23,147 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:23,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:23,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1948500741, now seen corresponding path program 1 times [2024-10-11 04:53:23,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:23,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900641689] [2024-10-11 04:53:23,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:23,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:23,238 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:23,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:23,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900641689] [2024-10-11 04:53:23,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900641689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:23,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:23,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:23,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265110489] [2024-10-11 04:53:23,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:23,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:23,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:23,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:23,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:23,240 INFO L87 Difference]: Start difference. First operand 5894 states and 8594 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:23,330 INFO L93 Difference]: Finished difference Result 8058 states and 11626 transitions. [2024-10-11 04:53:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:23,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-10-11 04:53:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:23,337 INFO L225 Difference]: With dead ends: 8058 [2024-10-11 04:53:23,338 INFO L226 Difference]: Without dead ends: 3736 [2024-10-11 04:53:23,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:23,342 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 44 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:23,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3092 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:23,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2024-10-11 04:53:23,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3734. [2024-10-11 04:53:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3734 states, 3732 states have (on average 1.4828510182207932) internal successors, (5534), 3733 states have internal predecessors, (5534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 5534 transitions. [2024-10-11 04:53:23,441 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 5534 transitions. Word has length 95 [2024-10-11 04:53:23,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:23,441 INFO L471 AbstractCegarLoop]: Abstraction has 3734 states and 5534 transitions. [2024-10-11 04:53:23,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 5534 transitions. [2024-10-11 04:53:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 04:53:23,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:23,443 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:23,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 04:53:23,443 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:23,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:23,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1337448105, now seen corresponding path program 1 times [2024-10-11 04:53:23,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:23,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62332624] [2024-10-11 04:53:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:23,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:23,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:23,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62332624] [2024-10-11 04:53:23,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62332624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:23,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:23,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:23,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312773093] [2024-10-11 04:53:23,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:23,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:23,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:23,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:23,540 INFO L87 Difference]: Start difference. First operand 3734 states and 5534 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:23,604 INFO L93 Difference]: Finished difference Result 4818 states and 7036 transitions. [2024-10-11 04:53:23,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:23,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-10-11 04:53:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:23,609 INFO L225 Difference]: With dead ends: 4818 [2024-10-11 04:53:23,609 INFO L226 Difference]: Without dead ends: 2656 [2024-10-11 04:53:23,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:23,612 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 41 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:23,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3077 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2024-10-11 04:53:23,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2654. [2024-10-11 04:53:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2652 states have (on average 1.5154600301659125) internal successors, (4019), 2653 states have internal predecessors, (4019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 4019 transitions. [2024-10-11 04:53:23,687 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 4019 transitions. Word has length 97 [2024-10-11 04:53:23,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:23,687 INFO L471 AbstractCegarLoop]: Abstraction has 2654 states and 4019 transitions. [2024-10-11 04:53:23,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 4019 transitions. [2024-10-11 04:53:23,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 04:53:23,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:23,689 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:23,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 04:53:23,689 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:23,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:23,690 INFO L85 PathProgramCache]: Analyzing trace with hash 54256087, now seen corresponding path program 1 times [2024-10-11 04:53:23,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:23,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346861473] [2024-10-11 04:53:23,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:23,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:24,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:24,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346861473] [2024-10-11 04:53:24,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346861473] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:24,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855032354] [2024-10-11 04:53:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:24,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:24,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:24,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:24,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 04:53:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:24,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:53:24,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:24,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:25,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855032354] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:25,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:25,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-10-11 04:53:25,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264354582] [2024-10-11 04:53:25,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:25,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 04:53:25,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:25,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 04:53:25,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-10-11 04:53:25,932 INFO L87 Difference]: Start difference. First operand 2654 states and 4019 transitions. Second operand has 25 states, 25 states have (on average 10.48) internal successors, (262), 24 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:27,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:27,771 INFO L93 Difference]: Finished difference Result 7168 states and 10236 transitions. [2024-10-11 04:53:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 04:53:27,772 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.48) internal successors, (262), 24 states have internal predecessors, (262), 0 states have call successors, (0), 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 99 [2024-10-11 04:53:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:27,781 INFO L225 Difference]: With dead ends: 7168 [2024-10-11 04:53:27,781 INFO L226 Difference]: Without dead ends: 6086 [2024-10-11 04:53:27,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=629, Invalid=2233, Unknown=0, NotChecked=0, Total=2862 [2024-10-11 04:53:27,785 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 22644 mSDsluCounter, 6389 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22644 SdHoareTripleChecker+Valid, 7895 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:27,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22644 Valid, 7895 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 04:53:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2024-10-11 04:53:27,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 6014. [2024-10-11 04:53:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 6012 states have (on average 1.4194943446440453) internal successors, (8534), 6013 states have internal predecessors, (8534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 8534 transitions. [2024-10-11 04:53:27,951 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 8534 transitions. Word has length 99 [2024-10-11 04:53:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:27,952 INFO L471 AbstractCegarLoop]: Abstraction has 6014 states and 8534 transitions. [2024-10-11 04:53:27,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.48) internal successors, (262), 24 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 8534 transitions. [2024-10-11 04:53:27,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:53:27,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:27,953 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:27,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 04:53:28,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 04:53:28,154 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:28,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:28,155 INFO L85 PathProgramCache]: Analyzing trace with hash -256420804, now seen corresponding path program 1 times [2024-10-11 04:53:28,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:28,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798276933] [2024-10-11 04:53:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:28,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:29,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:29,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798276933] [2024-10-11 04:53:29,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798276933] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:29,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214179153] [2024-10-11 04:53:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:29,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:29,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:29,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:29,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 04:53:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:29,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-11 04:53:29,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:30,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:30,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:32,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214179153] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:32,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:32,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 14] total 40 [2024-10-11 04:53:32,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939642267] [2024-10-11 04:53:32,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:32,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-11 04:53:32,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:32,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-11 04:53:32,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1361, Unknown=0, NotChecked=0, Total=1560 [2024-10-11 04:53:32,192 INFO L87 Difference]: Start difference. First operand 6014 states and 8534 transitions. Second operand has 40 states, 40 states have (on average 6.75) internal successors, (270), 40 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:37,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:37,751 INFO L93 Difference]: Finished difference Result 35558 states and 48536 transitions. [2024-10-11 04:53:37,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-11 04:53:37,751 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 6.75) internal successors, (270), 40 states have internal predecessors, (270), 0 states have call successors, (0), 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 100 [2024-10-11 04:53:37,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:37,788 INFO L225 Difference]: With dead ends: 35558 [2024-10-11 04:53:37,788 INFO L226 Difference]: Without dead ends: 31116 [2024-10-11 04:53:37,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2953 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1906, Invalid=8194, Unknown=0, NotChecked=0, Total=10100 [2024-10-11 04:53:37,802 INFO L432 NwaCegarLoop]: 1544 mSDtfsCounter, 22308 mSDsluCounter, 8867 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22308 SdHoareTripleChecker+Valid, 10411 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:37,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22308 Valid, 10411 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 04:53:37,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31116 states. [2024-10-11 04:53:38,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31116 to 30374. [2024-10-11 04:53:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30374 states, 30372 states have (on average 1.348742262610299) internal successors, (40964), 30373 states have internal predecessors, (40964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:38,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30374 states to 30374 states and 40964 transitions. [2024-10-11 04:53:38,619 INFO L78 Accepts]: Start accepts. Automaton has 30374 states and 40964 transitions. Word has length 100 [2024-10-11 04:53:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:38,619 INFO L471 AbstractCegarLoop]: Abstraction has 30374 states and 40964 transitions. [2024-10-11 04:53:38,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 6.75) internal successors, (270), 40 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 30374 states and 40964 transitions. [2024-10-11 04:53:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:53:38,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:38,622 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:38,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 04:53:38,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 04:53:38,824 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:38,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash 387149573, now seen corresponding path program 1 times [2024-10-11 04:53:38,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543897789] [2024-10-11 04:53:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:38,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:39,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:39,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:39,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543897789] [2024-10-11 04:53:39,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543897789] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:39,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795708914] [2024-10-11 04:53:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:39,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:39,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:39,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:39,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 04:53:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:39,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 04:53:39,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:39,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:40,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795708914] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:40,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:40,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-10-11 04:53:40,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236478331] [2024-10-11 04:53:40,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:40,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 04:53:40,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:40,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 04:53:40,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-10-11 04:53:40,294 INFO L87 Difference]: Start difference. First operand 30374 states and 40964 transitions. Second operand has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:42,035 INFO L93 Difference]: Finished difference Result 90500 states and 121607 transitions. [2024-10-11 04:53:42,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 04:53:42,036 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 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 101 [2024-10-11 04:53:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:42,114 INFO L225 Difference]: With dead ends: 90500 [2024-10-11 04:53:42,114 INFO L226 Difference]: Without dead ends: 61698 [2024-10-11 04:53:42,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 04:53:42,143 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 9488 mSDsluCounter, 4950 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9488 SdHoareTripleChecker+Valid, 6482 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:42,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9488 Valid, 6482 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 04:53:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61698 states. [2024-10-11 04:53:43,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61698 to 60854. [2024-10-11 04:53:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60854 states, 60852 states have (on average 1.3254124761716952) internal successors, (80654), 60853 states have internal predecessors, (80654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60854 states to 60854 states and 80654 transitions. [2024-10-11 04:53:44,010 INFO L78 Accepts]: Start accepts. Automaton has 60854 states and 80654 transitions. Word has length 101 [2024-10-11 04:53:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:44,011 INFO L471 AbstractCegarLoop]: Abstraction has 60854 states and 80654 transitions. [2024-10-11 04:53:44,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:44,011 INFO L276 IsEmpty]: Start isEmpty. Operand 60854 states and 80654 transitions. [2024-10-11 04:53:44,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-11 04:53:44,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:44,015 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:44,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 04:53:44,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:44,216 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:44,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:44,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1493735660, now seen corresponding path program 1 times [2024-10-11 04:53:44,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:44,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602845383] [2024-10-11 04:53:44,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:44,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:44,523 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:44,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:44,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602845383] [2024-10-11 04:53:44,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602845383] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:44,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204799208] [2024-10-11 04:53:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:44,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:44,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:44,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:44,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 04:53:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:44,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-11 04:53:44,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:46,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:49,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204799208] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:49,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:49,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 21, 21] total 49 [2024-10-11 04:53:49,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179802290] [2024-10-11 04:53:49,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:49,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-11 04:53:49,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:49,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-11 04:53:49,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=2092, Unknown=0, NotChecked=0, Total=2450 [2024-10-11 04:53:49,948 INFO L87 Difference]: Start difference. First operand 60854 states and 80654 transitions. Second operand has 50 states, 50 states have (on average 5.56) internal successors, (278), 49 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)