./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.5.ufo.UNBOUNDED.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label00.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 890f1e18995284b0a908a97d5deeec0465d64ba29b3115b90de791926566ed26 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:58:03,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:58:03,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:58:03,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:58:03,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:58:03,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:58:03,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:58:03,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:58:03,285 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:58:03,287 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:58:03,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:58:03,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:58:03,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:58:03,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:58:03,289 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:58:03,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:58:03,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:58:03,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:58:03,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:58:03,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:58:03,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:58:03,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:58:03,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:58:03,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:58:03,296 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:58:03,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:58:03,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:58:03,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:58:03,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:58:03,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:58:03,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:58:03,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:58:03,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:58:03,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:58:03,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:58:03,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:58:03,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:58:03,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:58:03,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:58:03,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:58:03,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:58:03,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:58:03,302 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 890f1e18995284b0a908a97d5deeec0465d64ba29b3115b90de791926566ed26 [2024-10-14 04:58:03,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:58:03,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:58:03,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:58:03,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:58:03,610 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:58:03,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-10-14 04:58:05,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:58:05,584 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:58:05,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-10-14 04:58:05,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b047969/b288ef4c9c174362aea2b28e0ad788d1/FLAG93d86166b [2024-10-14 04:58:05,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b047969/b288ef4c9c174362aea2b28e0ad788d1 [2024-10-14 04:58:05,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:58:05,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:58:05,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:58:05,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:58:05,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:58:05,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:58:05" (1/1) ... [2024-10-14 04:58:05,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788be9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:05, skipping insertion in model container [2024-10-14 04:58:05,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:58:05" (1/1) ... [2024-10-14 04:58:05,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:58:06,219 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.5.ufo.UNBOUNDED.pals+Problem12_label00.c[11668,11681] [2024-10-14 04:58:06,270 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.5.ufo.UNBOUNDED.pals+Problem12_label00.c[13543,13556] [2024-10-14 04:58:06,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:58:06,976 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:58:07,016 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.5.ufo.UNBOUNDED.pals+Problem12_label00.c[11668,11681] [2024-10-14 04:58:07,022 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.5.ufo.UNBOUNDED.pals+Problem12_label00.c[13543,13556] [2024-10-14 04:58:07,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:58:07,559 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:58:07,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07 WrapperNode [2024-10-14 04:58:07,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:58:07,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:58:07,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:58:07,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:58:07,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:07,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:07,996 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-10-14 04:58:07,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:58:07,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:58:07,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:58:07,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:58:08,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,105 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,334 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]. [2024-10-14 04:58:08,334 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,334 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:58:08,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:58:08,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:58:08,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:58:08,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (1/1) ... [2024-10-14 04:58:08,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:58:08,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:08,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:58:08,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:58:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:58:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:58:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:58:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:58:08,812 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:58:08,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:58:13,402 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-10-14 04:58:13,402 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:58:13,481 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:58:13,482 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 04:58:13,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:58:13 BoogieIcfgContainer [2024-10-14 04:58:13,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:58:13,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:58:13,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:58:13,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:58:13,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:58:05" (1/3) ... [2024-10-14 04:58:13,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c895032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:58:13, skipping insertion in model container [2024-10-14 04:58:13,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:07" (2/3) ... [2024-10-14 04:58:13,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c895032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:58:13, skipping insertion in model container [2024-10-14 04:58:13,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:58:13" (3/3) ... [2024-10-14 04:58:13,493 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-10-14 04:58:13,516 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:58:13,517 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:58:13,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:58:13,663 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;@3fc177c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:58:13,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:58:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:13,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 04:58:13,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:13,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:13,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:13,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:13,686 INFO L85 PathProgramCache]: Analyzing trace with hash -619761927, now seen corresponding path program 1 times [2024-10-14 04:58:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:13,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096059654] [2024-10-14 04:58:13,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:13,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:13,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:13,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096059654] [2024-10-14 04:58:13,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096059654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:13,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:13,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 04:58:13,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847297849] [2024-10-14 04:58:13,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:13,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 04:58:13,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:13,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 04:58:13,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 04:58:13,925 INFO L87 Difference]: Start difference. First operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 0 states have call successors, (0), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:14,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:14,035 INFO L93 Difference]: Finished difference Result 1636 states and 3221 transitions. [2024-10-14 04:58:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 04:58:14,042 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-10-14 04:58:14,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:14,067 INFO L225 Difference]: With dead ends: 1636 [2024-10-14 04:58:14,070 INFO L226 Difference]: Without dead ends: 832 [2024-10-14 04:58:14,078 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 [2024-10-14 04:58:14,082 INFO L432 NwaCegarLoop]: 1573 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, 1573 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 [2024-10-14 04:58:14,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:14,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-10-14 04:58:14,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2024-10-14 04:58:14,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 830 states have (on average 1.8963855421686746) internal successors, (1574), 831 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:14,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1574 transitions. [2024-10-14 04:58:14,185 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1574 transitions. Word has length 15 [2024-10-14 04:58:14,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:14,188 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1574 transitions. [2024-10-14 04:58:14,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:14,189 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1574 transitions. [2024-10-14 04:58:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 04:58:14,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:14,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:14,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:58:14,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:14,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:14,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1556466634, now seen corresponding path program 1 times [2024-10-14 04:58:14,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:14,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997580661] [2024-10-14 04:58:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:14,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:14,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:14,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997580661] [2024-10-14 04:58:14,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997580661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:14,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:14,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 04:58:14,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404326801] [2024-10-14 04:58:14,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:14,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:14,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:14,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:14,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:14,349 INFO L87 Difference]: Start difference. First operand 832 states and 1574 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:17,619 INFO L93 Difference]: Finished difference Result 2336 states and 4447 transitions. [2024-10-14 04:58:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-10-14 04:58:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:17,626 INFO L225 Difference]: With dead ends: 2336 [2024-10-14 04:58:17,626 INFO L226 Difference]: Without dead ends: 1583 [2024-10-14 04:58:17,627 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 [2024-10-14 04:58:17,628 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 938 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:17,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 560 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-14 04:58:17,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-10-14 04:58:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2024-10-14 04:58:17,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1581 states have (on average 1.6451612903225807) internal successors, (2601), 1582 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2601 transitions. [2024-10-14 04:58:17,689 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2601 transitions. Word has length 15 [2024-10-14 04:58:17,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:17,690 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2601 transitions. [2024-10-14 04:58:17,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2601 transitions. [2024-10-14 04:58:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 04:58:17,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:17,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:17,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:58:17,694 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:17,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash 892497994, now seen corresponding path program 1 times [2024-10-14 04:58:17,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:17,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989105038] [2024-10-14 04:58:17,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:17,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:17,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989105038] [2024-10-14 04:58:17,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989105038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:17,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:17,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:58:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402465049] [2024-10-14 04:58:17,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:17,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:58:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:17,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:58:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:58:17,844 INFO L87 Difference]: Start difference. First operand 1583 states and 2601 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:17,929 INFO L93 Difference]: Finished difference Result 1629 states and 2673 transitions. [2024-10-14 04:58:17,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:58:17,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2024-10-14 04:58:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:17,936 INFO L225 Difference]: With dead ends: 1629 [2024-10-14 04:58:17,936 INFO L226 Difference]: Without dead ends: 1583 [2024-10-14 04:58:17,937 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 [2024-10-14 04:58:17,939 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4678 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:17,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4678 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-10-14 04:58:17,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2024-10-14 04:58:17,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1581 states have (on average 1.6255534471853257) internal successors, (2570), 1582 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2570 transitions. [2024-10-14 04:58:17,975 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2570 transitions. Word has length 21 [2024-10-14 04:58:17,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:17,978 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2570 transitions. [2024-10-14 04:58:17,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2570 transitions. [2024-10-14 04:58:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 04:58:17,981 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:17,982 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] [2024-10-14 04:58:17,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:58:17,982 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:17,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:17,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1076852577, now seen corresponding path program 1 times [2024-10-14 04:58:17,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:17,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023773886] [2024-10-14 04:58:17,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:17,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:18,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:18,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023773886] [2024-10-14 04:58:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023773886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713913479] [2024-10-14 04:58:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:18,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:18,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:18,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:18,194 INFO L87 Difference]: Start difference. First operand 1583 states and 2570 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:18,464 INFO L93 Difference]: Finished difference Result 2013 states and 3260 transitions. [2024-10-14 04:58:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 04:58:18,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-14 04:58:18,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:18,473 INFO L225 Difference]: With dead ends: 2013 [2024-10-14 04:58:18,473 INFO L226 Difference]: Without dead ends: 1970 [2024-10-14 04:58:18,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-14 04:58:18,476 INFO L432 NwaCegarLoop]: 1534 mSDtfsCounter, 7959 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7959 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:18,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7959 Valid, 2654 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2024-10-14 04:58:18,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1624. [2024-10-14 04:58:18,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1622 states have (on average 1.625154130702836) internal successors, (2636), 1623 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2636 transitions. [2024-10-14 04:58:18,520 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2636 transitions. Word has length 51 [2024-10-14 04:58:18,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:18,521 INFO L471 AbstractCegarLoop]: Abstraction has 1624 states and 2636 transitions. [2024-10-14 04:58:18,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2636 transitions. [2024-10-14 04:58:18,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 04:58:18,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:18,525 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] [2024-10-14 04:58:18,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:58:18,525 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:18,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:18,526 INFO L85 PathProgramCache]: Analyzing trace with hash -377541423, now seen corresponding path program 1 times [2024-10-14 04:58:18,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:18,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806229400] [2024-10-14 04:58:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:18,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:18,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:18,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:18,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806229400] [2024-10-14 04:58:18,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806229400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:18,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:18,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:18,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240807750] [2024-10-14 04:58:18,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:18,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:18,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:18,643 INFO L87 Difference]: Start difference. First operand 1624 states and 2636 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:18,686 INFO L93 Difference]: Finished difference Result 1781 states and 2887 transitions. [2024-10-14 04:58:18,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:18,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-14 04:58:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:18,694 INFO L225 Difference]: With dead ends: 1781 [2024-10-14 04:58:18,694 INFO L226 Difference]: Without dead ends: 1697 [2024-10-14 04:58:18,696 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 [2024-10-14 04:58:18,698 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 1482 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1597 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 [2024-10-14 04:58:18,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1597 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:18,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2024-10-14 04:58:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1693. [2024-10-14 04:58:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1691 states have (on average 1.6227084565345948) internal successors, (2744), 1692 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2744 transitions. [2024-10-14 04:58:18,740 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2744 transitions. Word has length 53 [2024-10-14 04:58:18,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:18,742 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2744 transitions. [2024-10-14 04:58:18,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2744 transitions. [2024-10-14 04:58:18,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 04:58:18,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:18,744 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] [2024-10-14 04:58:18,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:58:18,744 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:18,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:18,748 INFO L85 PathProgramCache]: Analyzing trace with hash -375396471, now seen corresponding path program 1 times [2024-10-14 04:58:18,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:18,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832107384] [2024-10-14 04:58:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:18,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:19,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:19,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832107384] [2024-10-14 04:58:19,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832107384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:19,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:19,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:19,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485763959] [2024-10-14 04:58:19,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:19,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:19,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:19,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:19,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:19,136 INFO L87 Difference]: Start difference. First operand 1693 states and 2744 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:19,345 INFO L93 Difference]: Finished difference Result 1848 states and 2988 transitions. [2024-10-14 04:58:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:19,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-14 04:58:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:19,353 INFO L225 Difference]: With dead ends: 1848 [2024-10-14 04:58:19,354 INFO L226 Difference]: Without dead ends: 1695 [2024-10-14 04:58:19,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:58:19,356 INFO L432 NwaCegarLoop]: 1533 mSDtfsCounter, 7454 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7454 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:19,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7454 Valid, 1790 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-10-14 04:58:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1693. [2024-10-14 04:58:19,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1691 states have (on average 1.621525724423418) internal successors, (2742), 1692 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2742 transitions. [2024-10-14 04:58:19,406 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2742 transitions. Word has length 53 [2024-10-14 04:58:19,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:19,407 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2742 transitions. [2024-10-14 04:58:19,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2742 transitions. [2024-10-14 04:58:19,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-14 04:58:19,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:19,409 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] [2024-10-14 04:58:19,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:58:19,410 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:19,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:19,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1118535855, now seen corresponding path program 1 times [2024-10-14 04:58:19,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:19,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157393949] [2024-10-14 04:58:19,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:19,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:19,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:19,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157393949] [2024-10-14 04:58:19,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157393949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:19,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:19,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:58:19,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368511685] [2024-10-14 04:58:19,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:19,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:58:19,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:19,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:58:19,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:58:19,636 INFO L87 Difference]: Start difference. First operand 1693 states and 2742 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:19,685 INFO L93 Difference]: Finished difference Result 1699 states and 2749 transitions. [2024-10-14 04:58:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:58:19,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-14 04:58:19,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:19,695 INFO L225 Difference]: With dead ends: 1699 [2024-10-14 04:58:19,695 INFO L226 Difference]: Without dead ends: 1697 [2024-10-14 04:58:19,697 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 [2024-10-14 04:58:19,699 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 0 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4609 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 [2024-10-14 04:58:19,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4609 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2024-10-14 04:58:19,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2024-10-14 04:58:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.6194690265486726) internal successors, (2745), 1696 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2745 transitions. [2024-10-14 04:58:19,750 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2745 transitions. Word has length 54 [2024-10-14 04:58:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:19,750 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 2745 transitions. [2024-10-14 04:58:19,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2745 transitions. [2024-10-14 04:58:19,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:19,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:19,752 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] [2024-10-14 04:58:19,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:58:19,752 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:19,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:19,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1027191959, now seen corresponding path program 1 times [2024-10-14 04:58:19,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:19,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573142169] [2024-10-14 04:58:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:19,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:19,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:19,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573142169] [2024-10-14 04:58:19,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573142169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:19,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:19,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:19,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887051512] [2024-10-14 04:58:19,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:19,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:19,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:19,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:19,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:19,839 INFO L87 Difference]: Start difference. First operand 1697 states and 2745 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:19,882 INFO L93 Difference]: Finished difference Result 1995 states and 3205 transitions. [2024-10-14 04:58:19,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:19,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-14 04:58:19,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:19,890 INFO L225 Difference]: With dead ends: 1995 [2024-10-14 04:58:19,890 INFO L226 Difference]: Without dead ends: 1838 [2024-10-14 04:58:19,891 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 [2024-10-14 04:58:19,892 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 1495 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1658 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 [2024-10-14 04:58:19,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1658 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-10-14 04:58:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1836. [2024-10-14 04:58:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1834 states have (on average 1.6117775354416575) internal successors, (2956), 1835 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2956 transitions. [2024-10-14 04:58:19,940 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2956 transitions. Word has length 55 [2024-10-14 04:58:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:19,940 INFO L471 AbstractCegarLoop]: Abstraction has 1836 states and 2956 transitions. [2024-10-14 04:58:19,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2956 transitions. [2024-10-14 04:58:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:19,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:19,942 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] [2024-10-14 04:58:19,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:58:19,942 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:19,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash -987248023, now seen corresponding path program 1 times [2024-10-14 04:58:19,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:19,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300165893] [2024-10-14 04:58:19,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:19,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:20,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:20,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:20,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300165893] [2024-10-14 04:58:20,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300165893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:20,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:20,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:20,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642629853] [2024-10-14 04:58:20,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:20,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:20,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:20,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:20,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,005 INFO L87 Difference]: Start difference. First operand 1836 states and 2956 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:20,053 INFO L93 Difference]: Finished difference Result 2396 states and 3810 transitions. [2024-10-14 04:58:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:20,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-14 04:58:20,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:20,062 INFO L225 Difference]: With dead ends: 2396 [2024-10-14 04:58:20,062 INFO L226 Difference]: Without dead ends: 2100 [2024-10-14 04:58:20,064 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 [2024-10-14 04:58:20,064 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 1493 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1660 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 [2024-10-14 04:58:20,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1660 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:20,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-10-14 04:58:20,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2098. [2024-10-14 04:58:20,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 2096 states have (on average 1.5963740458015268) internal successors, (3346), 2097 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 3346 transitions. [2024-10-14 04:58:20,125 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 3346 transitions. Word has length 55 [2024-10-14 04:58:20,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:20,126 INFO L471 AbstractCegarLoop]: Abstraction has 2098 states and 3346 transitions. [2024-10-14 04:58:20,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 3346 transitions. [2024-10-14 04:58:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:20,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:20,127 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] [2024-10-14 04:58:20,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:58:20,127 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:20,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1612904087, now seen corresponding path program 1 times [2024-10-14 04:58:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:20,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14791875] [2024-10-14 04:58:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:20,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:20,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:20,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14791875] [2024-10-14 04:58:20,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14791875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:20,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:20,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:20,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764840898] [2024-10-14 04:58:20,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:20,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:20,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:20,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:20,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,187 INFO L87 Difference]: Start difference. First operand 2098 states and 3346 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:20,241 INFO L93 Difference]: Finished difference Result 3150 states and 4924 transitions. [2024-10-14 04:58:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-14 04:58:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:20,251 INFO L225 Difference]: With dead ends: 3150 [2024-10-14 04:58:20,252 INFO L226 Difference]: Without dead ends: 2592 [2024-10-14 04:58:20,254 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 [2024-10-14 04:58:20,254 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 1491 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1662 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 [2024-10-14 04:58:20,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:20,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2024-10-14 04:58:20,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 2590. [2024-10-14 04:58:20,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2588 states have (on average 1.5695517774343122) internal successors, (4062), 2589 states have internal predecessors, (4062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 4062 transitions. [2024-10-14 04:58:20,329 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 4062 transitions. Word has length 55 [2024-10-14 04:58:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:20,329 INFO L471 AbstractCegarLoop]: Abstraction has 2590 states and 4062 transitions. [2024-10-14 04:58:20,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 4062 transitions. [2024-10-14 04:58:20,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:20,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:20,330 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] [2024-10-14 04:58:20,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:58:20,331 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:20,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:20,331 INFO L85 PathProgramCache]: Analyzing trace with hash -724170647, now seen corresponding path program 1 times [2024-10-14 04:58:20,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:20,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758387537] [2024-10-14 04:58:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:20,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:20,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:20,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758387537] [2024-10-14 04:58:20,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758387537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:20,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:20,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:20,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534377287] [2024-10-14 04:58:20,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:20,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:20,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:20,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:20,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,395 INFO L87 Difference]: Start difference. First operand 2590 states and 4062 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:20,463 INFO L93 Difference]: Finished difference Result 4562 states and 6960 transitions. [2024-10-14 04:58:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:20,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-14 04:58:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:20,477 INFO L225 Difference]: With dead ends: 4562 [2024-10-14 04:58:20,477 INFO L226 Difference]: Without dead ends: 3512 [2024-10-14 04:58:20,480 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 [2024-10-14 04:58:20,480 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 1489 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1664 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 [2024-10-14 04:58:20,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:20,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2024-10-14 04:58:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3510. [2024-10-14 04:58:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3508 states have (on average 1.5296465222348916) internal successors, (5366), 3509 states have internal predecessors, (5366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 5366 transitions. [2024-10-14 04:58:20,573 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 5366 transitions. Word has length 55 [2024-10-14 04:58:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:20,573 INFO L471 AbstractCegarLoop]: Abstraction has 3510 states and 5366 transitions. [2024-10-14 04:58:20,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 5366 transitions. [2024-10-14 04:58:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 04:58:20,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:20,575 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] [2024-10-14 04:58:20,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:58:20,575 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:20,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:20,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2038301810, now seen corresponding path program 1 times [2024-10-14 04:58:20,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:20,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171489111] [2024-10-14 04:58:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:20,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:20,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:20,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171489111] [2024-10-14 04:58:20,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171489111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:20,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:20,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:20,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600956243] [2024-10-14 04:58:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:20,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:20,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,637 INFO L87 Difference]: Start difference. First operand 3510 states and 5366 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:20,767 INFO L93 Difference]: Finished difference Result 5565 states and 8412 transitions. [2024-10-14 04:58:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:20,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-10-14 04:58:20,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:20,783 INFO L225 Difference]: With dead ends: 5565 [2024-10-14 04:58:20,784 INFO L226 Difference]: Without dead ends: 4442 [2024-10-14 04:58:20,787 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 [2024-10-14 04:58:20,788 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 1494 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1659 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 [2024-10-14 04:58:20,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4442 states. [2024-10-14 04:58:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4442 to 4440. [2024-10-14 04:58:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4440 states, 4438 states have (on average 1.5087877422262281) internal successors, (6696), 4439 states have internal predecessors, (6696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 6696 transitions. [2024-10-14 04:58:20,903 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 6696 transitions. Word has length 57 [2024-10-14 04:58:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:20,904 INFO L471 AbstractCegarLoop]: Abstraction has 4440 states and 6696 transitions. [2024-10-14 04:58:20,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 6696 transitions. [2024-10-14 04:58:20,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:20,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:20,906 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] [2024-10-14 04:58:20,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:58:20,906 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:20,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:20,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1695522485, now seen corresponding path program 1 times [2024-10-14 04:58:20,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:20,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635170474] [2024-10-14 04:58:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:20,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 04:58:21,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:21,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635170474] [2024-10-14 04:58:21,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635170474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:21,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:21,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:21,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341947186] [2024-10-14 04:58:21,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:21,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:21,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:21,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:21,061 INFO L87 Difference]: Start difference. First operand 4440 states and 6696 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:21,468 INFO L93 Difference]: Finished difference Result 19540 states and 28510 transitions. [2024-10-14 04:58:21,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:21,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:58:21,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:21,506 INFO L225 Difference]: With dead ends: 19540 [2024-10-14 04:58:21,507 INFO L226 Difference]: Without dead ends: 16642 [2024-10-14 04:58:21,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:21,517 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 6318 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6318 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:21,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6318 Valid, 3609 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:21,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16642 states. [2024-10-14 04:58:21,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16642 to 7336. [2024-10-14 04:58:21,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7336 states, 7334 states have (on average 1.478047450231797) internal successors, (10840), 7335 states have internal predecessors, (10840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7336 states to 7336 states and 10840 transitions. [2024-10-14 04:58:21,811 INFO L78 Accepts]: Start accepts. Automaton has 7336 states and 10840 transitions. Word has length 73 [2024-10-14 04:58:21,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:21,812 INFO L471 AbstractCegarLoop]: Abstraction has 7336 states and 10840 transitions. [2024-10-14 04:58:21,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7336 states and 10840 transitions. [2024-10-14 04:58:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:21,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:21,814 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] [2024-10-14 04:58:21,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:58:21,815 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:21,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1655578549, now seen corresponding path program 1 times [2024-10-14 04:58:21,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:21,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756536384] [2024-10-14 04:58:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:21,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 04:58:22,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:22,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756536384] [2024-10-14 04:58:22,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756536384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:22,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:22,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:22,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17139235] [2024-10-14 04:58:22,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:22,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:22,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:22,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:22,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:22,047 INFO L87 Difference]: Start difference. First operand 7336 states and 10840 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:22,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:22,527 INFO L93 Difference]: Finished difference Result 22436 states and 32654 transitions. [2024-10-14 04:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:22,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:58:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:22,567 INFO L225 Difference]: With dead ends: 22436 [2024-10-14 04:58:22,567 INFO L226 Difference]: Without dead ends: 19538 [2024-10-14 04:58:22,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:22,581 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 6338 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6338 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:22,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6338 Valid, 3557 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19538 states. [2024-10-14 04:58:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19538 to 11688. [2024-10-14 04:58:22,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11688 states, 11686 states have (on average 1.4561013178161903) internal successors, (17016), 11687 states have internal predecessors, (17016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:22,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11688 states to 11688 states and 17016 transitions. [2024-10-14 04:58:22,973 INFO L78 Accepts]: Start accepts. Automaton has 11688 states and 17016 transitions. Word has length 73 [2024-10-14 04:58:22,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:22,973 INFO L471 AbstractCegarLoop]: Abstraction has 11688 states and 17016 transitions. [2024-10-14 04:58:22,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:22,974 INFO L276 IsEmpty]: Start isEmpty. Operand 11688 states and 17016 transitions. [2024-10-14 04:58:22,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:22,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:22,976 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] [2024-10-14 04:58:22,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:58:22,977 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:22,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2013732683, now seen corresponding path program 1 times [2024-10-14 04:58:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:22,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826570877] [2024-10-14 04:58:22,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 04:58:23,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826570877] [2024-10-14 04:58:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826570877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:23,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:23,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85156430] [2024-10-14 04:58:23,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:23,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:23,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:23,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:23,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:23,147 INFO L87 Difference]: Start difference. First operand 11688 states and 17016 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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) [2024-10-14 04:58:23,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:23,729 INFO L93 Difference]: Finished difference Result 25332 states and 36798 transitions. [2024-10-14 04:58:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:23,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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 73 [2024-10-14 04:58:23,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:23,777 INFO L225 Difference]: With dead ends: 25332 [2024-10-14 04:58:23,777 INFO L226 Difference]: Without dead ends: 22434 [2024-10-14 04:58:23,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:23,792 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 6382 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6382 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:23,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6382 Valid, 3520 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:23,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22434 states. [2024-10-14 04:58:24,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22434 to 14584. [2024-10-14 04:58:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14584 states, 14582 states have (on average 1.4511041009463723) internal successors, (21160), 14583 states have internal predecessors, (21160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14584 states to 14584 states and 21160 transitions. [2024-10-14 04:58:24,271 INFO L78 Accepts]: Start accepts. Automaton has 14584 states and 21160 transitions. Word has length 73 [2024-10-14 04:58:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:24,272 INFO L471 AbstractCegarLoop]: Abstraction has 14584 states and 21160 transitions. [2024-10-14 04:58:24,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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) [2024-10-14 04:58:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 14584 states and 21160 transitions. [2024-10-14 04:58:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:24,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:24,274 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] [2024-10-14 04:58:24,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:58:24,275 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:24,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:24,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1392501173, now seen corresponding path program 1 times [2024-10-14 04:58:24,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:24,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524872596] [2024-10-14 04:58:24,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:24,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 04:58:24,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:24,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524872596] [2024-10-14 04:58:24,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524872596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:24,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:24,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957652385] [2024-10-14 04:58:24,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:24,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:24,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:24,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:24,463 INFO L87 Difference]: Start difference. First operand 14584 states and 21160 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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) [2024-10-14 04:58:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:25,299 INFO L93 Difference]: Finished difference Result 28228 states and 40942 transitions. [2024-10-14 04:58:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 73 [2024-10-14 04:58:25,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:25,363 INFO L225 Difference]: With dead ends: 28228 [2024-10-14 04:58:25,363 INFO L226 Difference]: Without dead ends: 25330 [2024-10-14 04:58:25,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:25,378 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 6333 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6333 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:25,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6333 Valid, 3568 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25330 states. [2024-10-14 04:58:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25330 to 17480. [2024-10-14 04:58:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17480 states, 17478 states have (on average 1.4477629019338598) internal successors, (25304), 17479 states have internal predecessors, (25304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:26,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17480 states to 17480 states and 25304 transitions. [2024-10-14 04:58:26,081 INFO L78 Accepts]: Start accepts. Automaton has 17480 states and 25304 transitions. Word has length 73 [2024-10-14 04:58:26,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:26,082 INFO L471 AbstractCegarLoop]: Abstraction has 17480 states and 25304 transitions. [2024-10-14 04:58:26,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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) [2024-10-14 04:58:26,082 INFO L276 IsEmpty]: Start isEmpty. Operand 17480 states and 25304 transitions. [2024-10-14 04:58:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-14 04:58:26,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:26,084 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] [2024-10-14 04:58:26,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 04:58:26,085 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:26,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:26,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1748107533, now seen corresponding path program 1 times [2024-10-14 04:58:26,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:26,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926017915] [2024-10-14 04:58:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:26,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:26,219 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:26,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:26,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926017915] [2024-10-14 04:58:26,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926017915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:26,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:26,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:26,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443249712] [2024-10-14 04:58:26,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:26,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:26,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:26,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:26,229 INFO L87 Difference]: Start difference. First operand 17480 states and 25304 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2024-10-14 04:58:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:26,500 INFO L93 Difference]: Finished difference Result 28767 states and 41694 transitions. [2024-10-14 04:58:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-10-14 04:58:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:26,532 INFO L225 Difference]: With dead ends: 28767 [2024-10-14 04:58:26,533 INFO L226 Difference]: Without dead ends: 12829 [2024-10-14 04:58:26,551 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 [2024-10-14 04:58:26,552 INFO L432 NwaCegarLoop]: 1580 mSDtfsCounter, 50 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3106 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 [2024-10-14 04:58:26,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12829 states. [2024-10-14 04:58:26,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12829 to 12827. [2024-10-14 04:58:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12827 states, 12825 states have (on average 1.4592592592592593) internal successors, (18715), 12826 states have internal predecessors, (18715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12827 states to 12827 states and 18715 transitions. [2024-10-14 04:58:27,026 INFO L78 Accepts]: Start accepts. Automaton has 12827 states and 18715 transitions. Word has length 75 [2024-10-14 04:58:27,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:27,026 INFO L471 AbstractCegarLoop]: Abstraction has 12827 states and 18715 transitions. [2024-10-14 04:58:27,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2024-10-14 04:58:27,026 INFO L276 IsEmpty]: Start isEmpty. Operand 12827 states and 18715 transitions. [2024-10-14 04:58:27,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-14 04:58:27,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:27,028 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] [2024-10-14 04:58:27,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 04:58:27,028 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:27,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash -58842896, now seen corresponding path program 1 times [2024-10-14 04:58:27,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:27,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682382779] [2024-10-14 04:58:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:27,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:58:27,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:27,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682382779] [2024-10-14 04:58:27,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682382779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:27,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:27,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:27,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902828250] [2024-10-14 04:58:27,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:27,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:27,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:27,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:27,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:27,190 INFO L87 Difference]: Start difference. First operand 12827 states and 18715 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:27,625 INFO L93 Difference]: Finished difference Result 23079 states and 33601 transitions. [2024-10-14 04:58:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:27,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-10-14 04:58:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:27,661 INFO L225 Difference]: With dead ends: 23079 [2024-10-14 04:58:27,662 INFO L226 Difference]: Without dead ends: 21029 [2024-10-14 04:58:27,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:27,673 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 6321 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6321 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:27,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6321 Valid, 3692 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21029 states. [2024-10-14 04:58:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21029 to 14875. [2024-10-14 04:58:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14875 states, 14873 states have (on average 1.4562630269616084) internal successors, (21659), 14874 states have internal predecessors, (21659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14875 states to 14875 states and 21659 transitions. [2024-10-14 04:58:28,057 INFO L78 Accepts]: Start accepts. Automaton has 14875 states and 21659 transitions. Word has length 75 [2024-10-14 04:58:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:28,057 INFO L471 AbstractCegarLoop]: Abstraction has 14875 states and 21659 transitions. [2024-10-14 04:58:28,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:28,058 INFO L276 IsEmpty]: Start isEmpty. Operand 14875 states and 21659 transitions. [2024-10-14 04:58:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 04:58:28,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:28,060 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] [2024-10-14 04:58:28,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 04:58:28,060 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:28,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:28,061 INFO L85 PathProgramCache]: Analyzing trace with hash -660146665, now seen corresponding path program 1 times [2024-10-14 04:58:28,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:28,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680300322] [2024-10-14 04:58:28,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:28,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:28,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:28,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680300322] [2024-10-14 04:58:28,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680300322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:28,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:28,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:28,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029458658] [2024-10-14 04:58:28,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:28,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:28,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:28,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:28,180 INFO L87 Difference]: Start difference. First operand 14875 states and 21659 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:28,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:28,466 INFO L93 Difference]: Finished difference Result 21535 states and 31229 transitions. [2024-10-14 04:58:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:28,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 04:58:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:28,479 INFO L225 Difference]: With dead ends: 21535 [2024-10-14 04:58:28,479 INFO L226 Difference]: Without dead ends: 8221 [2024-10-14 04:58:28,487 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 [2024-10-14 04:58:28,488 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 45 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3091 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 [2024-10-14 04:58:28,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3091 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:28,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2024-10-14 04:58:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 8219. [2024-10-14 04:58:28,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8219 states, 8217 states have (on average 1.458804916636242) internal successors, (11987), 8218 states have internal predecessors, (11987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8219 states to 8219 states and 11987 transitions. [2024-10-14 04:58:28,675 INFO L78 Accepts]: Start accepts. Automaton has 8219 states and 11987 transitions. Word has length 76 [2024-10-14 04:58:28,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:28,676 INFO L471 AbstractCegarLoop]: Abstraction has 8219 states and 11987 transitions. [2024-10-14 04:58:28,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8219 states and 11987 transitions. [2024-10-14 04:58:28,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 04:58:28,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:28,679 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] [2024-10-14 04:58:28,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 04:58:28,680 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:28,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1472275461, now seen corresponding path program 1 times [2024-10-14 04:58:28,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:28,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252231335] [2024-10-14 04:58:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:28,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:28,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:28,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252231335] [2024-10-14 04:58:28,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252231335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:28,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:28,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:28,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051836013] [2024-10-14 04:58:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:28,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:28,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:28,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:28,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:28,791 INFO L87 Difference]: Start difference. First operand 8219 states and 11987 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:28,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:28,884 INFO L93 Difference]: Finished difference Result 11551 states and 16721 transitions. [2024-10-14 04:58:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:28,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 04:58:28,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:28,894 INFO L225 Difference]: With dead ends: 11551 [2024-10-14 04:58:28,894 INFO L226 Difference]: Without dead ends: 4893 [2024-10-14 04:58:28,902 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 [2024-10-14 04:58:28,903 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 42 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3076 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 [2024-10-14 04:58:28,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3076 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2024-10-14 04:58:29,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4891. [2024-10-14 04:58:29,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4891 states, 4889 states have (on average 1.4733074248312539) internal successors, (7203), 4890 states have internal predecessors, (7203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4891 states to 4891 states and 7203 transitions. [2024-10-14 04:58:29,022 INFO L78 Accepts]: Start accepts. Automaton has 4891 states and 7203 transitions. Word has length 78 [2024-10-14 04:58:29,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:29,022 INFO L471 AbstractCegarLoop]: Abstraction has 4891 states and 7203 transitions. [2024-10-14 04:58:29,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4891 states and 7203 transitions. [2024-10-14 04:58:29,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 04:58:29,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:29,024 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] [2024-10-14 04:58:29,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 04:58:29,024 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:29,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:29,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1500171405, now seen corresponding path program 1 times [2024-10-14 04:58:29,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:29,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403372420] [2024-10-14 04:58:29,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:29,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:29,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:29,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403372420] [2024-10-14 04:58:29,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403372420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:29,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:29,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:29,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764132801] [2024-10-14 04:58:29,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:29,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:29,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:29,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:29,133 INFO L87 Difference]: Start difference. First operand 4891 states and 7203 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:29,195 INFO L93 Difference]: Finished difference Result 6559 states and 9545 transitions. [2024-10-14 04:58:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:29,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-14 04:58:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:29,202 INFO L225 Difference]: With dead ends: 6559 [2024-10-14 04:58:29,202 INFO L226 Difference]: Without dead ends: 3229 [2024-10-14 04:58:29,207 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 [2024-10-14 04:58:29,208 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 39 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3061 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 [2024-10-14 04:58:29,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3061 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:29,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2024-10-14 04:58:29,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3227. [2024-10-14 04:58:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3225 states have (on average 1.49984496124031) internal successors, (4837), 3226 states have internal predecessors, (4837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4837 transitions. [2024-10-14 04:58:29,278 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4837 transitions. Word has length 80 [2024-10-14 04:58:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:29,278 INFO L471 AbstractCegarLoop]: Abstraction has 3227 states and 4837 transitions. [2024-10-14 04:58:29,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4837 transitions. [2024-10-14 04:58:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 04:58:29,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:29,280 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] [2024-10-14 04:58:29,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 04:58:29,280 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:29,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:29,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1621752735, now seen corresponding path program 1 times [2024-10-14 04:58:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:29,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096374645] [2024-10-14 04:58:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:29,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:29,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:29,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096374645] [2024-10-14 04:58:29,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096374645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:29,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:29,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:29,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144728493] [2024-10-14 04:58:29,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:29,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:29,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:29,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:29,374 INFO L87 Difference]: Start difference. First operand 3227 states and 4837 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:29,418 INFO L93 Difference]: Finished difference Result 4063 states and 5996 transitions. [2024-10-14 04:58:29,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:29,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 04:58:29,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:29,423 INFO L225 Difference]: With dead ends: 4063 [2024-10-14 04:58:29,423 INFO L226 Difference]: Without dead ends: 2397 [2024-10-14 04:58:29,426 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 [2024-10-14 04:58:29,426 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 36 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3046 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 [2024-10-14 04:58:29,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3046 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2024-10-14 04:58:29,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2395. [2024-10-14 04:58:29,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 2393 states have (on average 1.532386126201421) internal successors, (3667), 2394 states have internal predecessors, (3667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3667 transitions. [2024-10-14 04:58:29,473 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3667 transitions. Word has length 82 [2024-10-14 04:58:29,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:29,473 INFO L471 AbstractCegarLoop]: Abstraction has 2395 states and 3667 transitions. [2024-10-14 04:58:29,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3667 transitions. [2024-10-14 04:58:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 04:58:29,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:29,475 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] [2024-10-14 04:58:29,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 04:58:29,475 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:29,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:29,476 INFO L85 PathProgramCache]: Analyzing trace with hash -481397041, now seen corresponding path program 1 times [2024-10-14 04:58:29,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:29,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841069300] [2024-10-14 04:58:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:29,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:30,838 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:30,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:30,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841069300] [2024-10-14 04:58:30,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841069300] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:30,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217797704] [2024-10-14 04:58:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:30,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:30,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:30,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:30,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:58:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:30,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 04:58:30,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:58:31,247 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:58:31,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217797704] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:31,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:31,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 4] total 18 [2024-10-14 04:58:31,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268205384] [2024-10-14 04:58:31,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:31,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 04:58:31,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:31,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 04:58:31,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-10-14 04:58:31,453 INFO L87 Difference]: Start difference. First operand 2395 states and 3667 transitions. Second operand has 18 states, 18 states have (on average 13.222222222222221) internal successors, (238), 18 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:33,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:33,924 INFO L93 Difference]: Finished difference Result 7990 states and 11205 transitions. [2024-10-14 04:58:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-14 04:58:33,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.222222222222221) internal successors, (238), 18 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 04:58:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:33,935 INFO L225 Difference]: With dead ends: 7990 [2024-10-14 04:58:33,935 INFO L226 Difference]: Without dead ends: 7156 [2024-10-14 04:58:33,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=714, Invalid=2946, Unknown=0, NotChecked=0, Total=3660 [2024-10-14 04:58:33,941 INFO L432 NwaCegarLoop]: 1518 mSDtfsCounter, 15050 mSDsluCounter, 6379 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15050 SdHoareTripleChecker+Valid, 7897 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:33,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15050 Valid, 7897 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:58:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2024-10-14 04:58:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 7108. [2024-10-14 04:58:34,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7108 states, 7106 states have (on average 1.3627920067548551) internal successors, (9684), 7107 states have internal predecessors, (9684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:34,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7108 states to 7108 states and 9684 transitions. [2024-10-14 04:58:34,122 INFO L78 Accepts]: Start accepts. Automaton has 7108 states and 9684 transitions. Word has length 84 [2024-10-14 04:58:34,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:34,122 INFO L471 AbstractCegarLoop]: Abstraction has 7108 states and 9684 transitions. [2024-10-14 04:58:34,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.222222222222221) internal successors, (238), 18 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7108 states and 9684 transitions. [2024-10-14 04:58:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 04:58:34,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:34,124 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] [2024-10-14 04:58:34,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 04:58:34,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-14 04:58:34,325 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:34,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash 560441504, now seen corresponding path program 1 times [2024-10-14 04:58:34,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:34,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865191678] [2024-10-14 04:58:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:34,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:35,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:35,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865191678] [2024-10-14 04:58:35,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865191678] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:35,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528961372] [2024-10-14 04:58:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:35,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:35,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:35,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:35,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 04:58:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:35,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 04:58:35,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:35,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:36,876 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:36,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528961372] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:36,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:36,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-10-14 04:58:36,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696777855] [2024-10-14 04:58:36,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:36,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-14 04:58:36,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:36,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-14 04:58:36,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2024-10-14 04:58:36,881 INFO L87 Difference]: Start difference. First operand 7108 states and 9684 transitions. Second operand has 29 states, 29 states have (on average 7.344827586206897) internal successors, (213), 28 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:38,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:38,926 INFO L93 Difference]: Finished difference Result 28180 states and 36965 transitions. [2024-10-14 04:58:38,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-14 04:58:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.344827586206897) internal successors, (213), 28 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 04:58:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:38,954 INFO L225 Difference]: With dead ends: 28180 [2024-10-14 04:58:38,955 INFO L226 Difference]: Without dead ends: 23261 [2024-10-14 04:58:38,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=699, Invalid=2493, Unknown=0, NotChecked=0, Total=3192 [2024-10-14 04:58:38,965 INFO L432 NwaCegarLoop]: 1501 mSDtfsCounter, 21052 mSDsluCounter, 4959 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21052 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:38,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21052 Valid, 6460 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:58:38,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23261 states. [2024-10-14 04:58:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23261 to 23097. [2024-10-14 04:58:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23097 states, 23095 states have (on average 1.3048278848235548) internal successors, (30135), 23096 states have internal predecessors, (30135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23097 states to 23097 states and 30135 transitions. [2024-10-14 04:58:39,849 INFO L78 Accepts]: Start accepts. Automaton has 23097 states and 30135 transitions. Word has length 85 [2024-10-14 04:58:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:39,849 INFO L471 AbstractCegarLoop]: Abstraction has 23097 states and 30135 transitions. [2024-10-14 04:58:39,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.344827586206897) internal successors, (213), 28 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 23097 states and 30135 transitions. [2024-10-14 04:58:39,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 04:58:39,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:39,851 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] [2024-10-14 04:58:39,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 04:58:40,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-14 04:58:40,052 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:40,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:40,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1629608864, now seen corresponding path program 1 times [2024-10-14 04:58:40,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:40,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844645079] [2024-10-14 04:58:40,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:40,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:40,385 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:40,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844645079] [2024-10-14 04:58:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844645079] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:40,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137671164] [2024-10-14 04:58:40,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:40,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:40,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:40,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:40,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 04:58:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:40,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 04:58:40,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:40,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:41,883 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:41,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137671164] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:41,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:41,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-10-14 04:58:41,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155380933] [2024-10-14 04:58:41,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:41,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-14 04:58:41,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:41,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-14 04:58:41,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-10-14 04:58:41,886 INFO L87 Difference]: Start difference. First operand 23097 states and 30135 transitions. Second operand has 26 states, 26 states have (on average 9.192307692307692) internal successors, (239), 25 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:43,961 INFO L93 Difference]: Finished difference Result 66745 states and 86434 transitions. [2024-10-14 04:58:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-14 04:58:43,962 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.192307692307692) internal successors, (239), 25 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 04:58:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:44,012 INFO L225 Difference]: With dead ends: 66745 [2024-10-14 04:58:44,012 INFO L226 Difference]: Without dead ends: 46438 [2024-10-14 04:58:44,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=656, Invalid=2536, Unknown=0, NotChecked=0, Total=3192 [2024-10-14 04:58:44,036 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 21631 mSDsluCounter, 8289 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21631 SdHoareTripleChecker+Valid, 9824 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:44,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21631 Valid, 9824 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:58:44,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46438 states. [2024-10-14 04:58:45,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46438 to 45562. [2024-10-14 04:58:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45562 states, 45560 states have (on average 1.2663520632133451) internal successors, (57695), 45561 states have internal predecessors, (57695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:45,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45562 states to 45562 states and 57695 transitions. [2024-10-14 04:58:45,345 INFO L78 Accepts]: Start accepts. Automaton has 45562 states and 57695 transitions. Word has length 85 [2024-10-14 04:58:45,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:45,345 INFO L471 AbstractCegarLoop]: Abstraction has 45562 states and 57695 transitions. [2024-10-14 04:58:45,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.192307692307692) internal successors, (239), 25 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:45,345 INFO L276 IsEmpty]: Start isEmpty. Operand 45562 states and 57695 transitions. [2024-10-14 04:58:45,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 04:58:45,348 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:45,348 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:45,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 04:58:45,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:45,549 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:45,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:45,549 INFO L85 PathProgramCache]: Analyzing trace with hash -959833651, now seen corresponding path program 1 times [2024-10-14 04:58:45,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:45,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285767200] [2024-10-14 04:58:45,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:45,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:45,918 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:45,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:45,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285767200] [2024-10-14 04:58:45,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285767200] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:45,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733302528] [2024-10-14 04:58:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:45,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:45,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:45,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:45,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 04:58:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:46,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-10-14 04:58:46,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:48,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:52,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733302528] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:52,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:52,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 20, 22] total 48 [2024-10-14 04:58:52,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140157498] [2024-10-14 04:58:52,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:52,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-14 04:58:52,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:52,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-14 04:58:52,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1907, Unknown=0, NotChecked=0, Total=2256 [2024-10-14 04:58:52,331 INFO L87 Difference]: Start difference. First operand 45562 states and 57695 transitions. Second operand has 48 states, 48 states have (on average 4.895833333333333) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:07,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:59:07,723 INFO L93 Difference]: Finished difference Result 121718 states and 155050 transitions. [2024-10-14 04:59:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-10-14 04:59:07,724 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.895833333333333) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 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 [2024-10-14 04:59:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:59:07,808 INFO L225 Difference]: With dead ends: 121718 [2024-10-14 04:59:07,808 INFO L226 Difference]: Without dead ends: 79555 [2024-10-14 04:59:07,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5467 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=3577, Invalid=12679, Unknown=0, NotChecked=0, Total=16256 [2024-10-14 04:59:07,832 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 25825 mSDsluCounter, 13027 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25825 SdHoareTripleChecker+Valid, 14575 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:59:07,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25825 Valid, 14575 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 04:59:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79555 states. [2024-10-14 04:59:10,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79555 to 45717. [2024-10-14 04:59:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45717 states, 45715 states have (on average 1.2589959531882315) internal successors, (57555), 45716 states have internal predecessors, (57555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45717 states to 45717 states and 57555 transitions. [2024-10-14 04:59:10,127 INFO L78 Accepts]: Start accepts. Automaton has 45717 states and 57555 transitions. Word has length 86 [2024-10-14 04:59:10,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:59:10,127 INFO L471 AbstractCegarLoop]: Abstraction has 45717 states and 57555 transitions. [2024-10-14 04:59:10,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.895833333333333) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 45717 states and 57555 transitions. [2024-10-14 04:59:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 04:59:10,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:10,129 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] [2024-10-14 04:59:10,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 04:59:10,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-14 04:59:10,330 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:10,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash 150661685, now seen corresponding path program 1 times [2024-10-14 04:59:10,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:10,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508583715] [2024-10-14 04:59:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:10,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:59:10,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508583715] [2024-10-14 04:59:10,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508583715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:59:10,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:59:10,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:59:10,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193004178] [2024-10-14 04:59:10,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:59:10,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:59:10,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:59:10,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:59:10,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:59:10,411 INFO L87 Difference]: Start difference. First operand 45717 states and 57555 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:59:14,750 INFO L93 Difference]: Finished difference Result 48723 states and 62482 transitions. [2024-10-14 04:59:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:59:14,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 04:59:14,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:59:14,798 INFO L225 Difference]: With dead ends: 48723 [2024-10-14 04:59:14,798 INFO L226 Difference]: Without dead ends: 47219 [2024-10-14 04:59:14,805 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 [2024-10-14 04:59:14,806 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 753 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:59:14,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1360 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-14 04:59:14,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47219 states. [2024-10-14 04:59:16,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47219 to 47219. [2024-10-14 04:59:16,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47219 states, 47217 states have (on average 1.264608086070695) internal successors, (59711), 47218 states have internal predecessors, (59711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:16,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47219 states to 47219 states and 59711 transitions. [2024-10-14 04:59:16,568 INFO L78 Accepts]: Start accepts. Automaton has 47219 states and 59711 transitions. Word has length 86 [2024-10-14 04:59:16,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:59:16,568 INFO L471 AbstractCegarLoop]: Abstraction has 47219 states and 59711 transitions. [2024-10-14 04:59:16,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:16,569 INFO L276 IsEmpty]: Start isEmpty. Operand 47219 states and 59711 transitions. [2024-10-14 04:59:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-14 04:59:16,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:16,570 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 04:59:16,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 04:59:16,570 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:16,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1251538414, now seen corresponding path program 1 times [2024-10-14 04:59:16,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:16,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223696392] [2024-10-14 04:59:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:16,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:16,961 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:16,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:59:16,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223696392] [2024-10-14 04:59:16,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223696392] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:59:16,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054856890] [2024-10-14 04:59:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:16,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:59:16,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:59:16,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:59:16,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 04:59:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:17,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 04:59:17,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:59:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:17,519 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:59:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054856890] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:59:18,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:59:18,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-10-14 04:59:18,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157816109] [2024-10-14 04:59:18,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:59:18,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 04:59:18,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:59:18,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 04:59:18,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-10-14 04:59:18,357 INFO L87 Difference]: Start difference. First operand 47219 states and 59711 transitions. Second operand has 21 states, 21 states have (on average 9.428571428571429) internal successors, (198), 20 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)