./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35835b17b59c5e920a3c43e288f4480e266a5c0d81ffb01d5e91066f0ee7062a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:53:17,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:53:17,529 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:53:17,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:53:17,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:53:17,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:53:17,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:53:17,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:53:17,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:53:17,571 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:53:17,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:53:17,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:53:17,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:53:17,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:53:17,575 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:53:17,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:53:17,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:53:17,575 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:53:17,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:53:17,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:53:17,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:53:17,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:53:17,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:53:17,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:53:17,580 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:53:17,580 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:53:17,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:53:17,580 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:53:17,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:53:17,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:53:17,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:53:17,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:53:17,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:53:17,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:53:17,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:53:17,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:53:17,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:53:17,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:53:17,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:53:17,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:53:17,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:53:17,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:53:17,585 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35835b17b59c5e920a3c43e288f4480e266a5c0d81ffb01d5e91066f0ee7062a [2024-10-11 04:53:17,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:53:17,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:53:17,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:53:17,863 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:53:17,864 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:53:17,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-11 04:53:19,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:53:19,788 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:53:19,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-11 04:53:19,830 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7704b629c/70b4e8dbeb9449a08ba885ece6d30002/FLAGb3e3e864a [2024-10-11 04:53:19,845 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7704b629c/70b4e8dbeb9449a08ba885ece6d30002 [2024-10-11 04:53:19,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:53:19,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:53:19,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:53:19,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:53:19,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:53:19,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:53:19" (1/1) ... [2024-10-11 04:53:19,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39523b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:19, skipping insertion in model container [2024-10-11 04:53:19,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:53:19" (1/1) ... [2024-10-11 04:53:19,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:53:20,355 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[15510,15523] [2024-10-11 04:53:20,413 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[22571,22584] [2024-10-11 04:53:21,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:53:21,074 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:53:21,123 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[15510,15523] [2024-10-11 04:53:21,140 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[22571,22584] [2024-10-11 04:53:21,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:53:21,623 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:53:21,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21 WrapperNode [2024-10-11 04:53:21,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:53:21,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:53:21,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:53:21,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:53:21,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:21,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,035 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-10-11 04:53:22,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:53:22,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:53:22,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:53:22,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:53:22,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,302 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 04:53:22,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:53:22,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:53:22,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:53:22,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:53:22,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (1/1) ... [2024-10-11 04:53:22,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:53:22,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:22,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:53:22,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:53:22,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:53:22,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:53:22,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:53:22,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:53:22,816 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:53:22,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:53:27,127 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-10-11 04:53:27,128 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:53:27,201 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:53:27,201 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 04:53:27,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:53:27 BoogieIcfgContainer [2024-10-11 04:53:27,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:53:27,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:53:27,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:53:27,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:53:27,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:53:19" (1/3) ... [2024-10-11 04:53:27,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a7b506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:53:27, skipping insertion in model container [2024-10-11 04:53:27,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:53:21" (2/3) ... [2024-10-11 04:53:27,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a7b506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:53:27, skipping insertion in model container [2024-10-11 04:53:27,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:53:27" (3/3) ... [2024-10-11 04:53:27,210 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-10-11 04:53:27,225 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:53:27,226 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:53:27,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:53:27,317 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;@370c5f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:53:27,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:53:27,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:27,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 04:53:27,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:27,337 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:27,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:27,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:27,343 INFO L85 PathProgramCache]: Analyzing trace with hash -150308239, now seen corresponding path program 1 times [2024-10-11 04:53:27,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:27,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806704080] [2024-10-11 04:53:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:27,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:27,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:27,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806704080] [2024-10-11 04:53:27,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806704080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:27,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:27,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:53:27,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999660430] [2024-10-11 04:53:27,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:27,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 04:53:27,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:27,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 04:53:27,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:53:27,691 INFO L87 Difference]: Start difference. First operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:27,801 INFO L93 Difference]: Finished difference Result 1657 states and 3259 transitions. [2024-10-11 04:53:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 04:53:27,804 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-10-11 04:53:27,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:27,820 INFO L225 Difference]: With dead ends: 1657 [2024-10-11 04:53:27,820 INFO L226 Difference]: Without dead ends: 847 [2024-10-11 04:53:27,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:53:27,834 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:27,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1601 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-10-11 04:53:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2024-10-11 04:53:27,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 1.8958579881656805) internal successors, (1602), 846 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1602 transitions. [2024-10-11 04:53:27,919 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1602 transitions. Word has length 23 [2024-10-11 04:53:27,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:27,919 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1602 transitions. [2024-10-11 04:53:27,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:27,920 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1602 transitions. [2024-10-11 04:53:27,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 04:53:27,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:27,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:27,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:53:27,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:27,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:27,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1839251981, now seen corresponding path program 1 times [2024-10-11 04:53:27,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:27,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905893478] [2024-10-11 04:53:27,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:27,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:28,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:28,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905893478] [2024-10-11 04:53:28,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905893478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:28,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:28,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:53:28,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899678572] [2024-10-11 04:53:28,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:28,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:53:28,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:28,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:53:28,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:53:28,122 INFO L87 Difference]: Start difference. First operand 847 states and 1602 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:28,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:28,236 INFO L93 Difference]: Finished difference Result 899 states and 1684 transitions. [2024-10-11 04:53:28,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:53:28,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-10-11 04:53:28,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:28,243 INFO L225 Difference]: With dead ends: 899 [2024-10-11 04:53:28,243 INFO L226 Difference]: Without dead ends: 847 [2024-10-11 04:53:28,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:53:28,245 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:28,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4753 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:28,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-10-11 04:53:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2024-10-11 04:53:28,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 1.8485207100591716) internal successors, (1562), 846 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1562 transitions. [2024-10-11 04:53:28,270 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1562 transitions. Word has length 23 [2024-10-11 04:53:28,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:28,270 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1562 transitions. [2024-10-11 04:53:28,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:28,271 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1562 transitions. [2024-10-11 04:53:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 04:53:28,273 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:28,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:28,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:53:28,273 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:28,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2061820925, now seen corresponding path program 1 times [2024-10-11 04:53:28,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:28,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994119346] [2024-10-11 04:53:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:28,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:28,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994119346] [2024-10-11 04:53:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994119346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:28,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:28,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:53:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213448390] [2024-10-11 04:53:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:28,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:28,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:28,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:28,425 INFO L87 Difference]: Start difference. First operand 847 states and 1562 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:31,736 INFO L93 Difference]: Finished difference Result 2351 states and 4435 transitions. [2024-10-11 04:53:31,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:31,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-10-11 04:53:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:31,744 INFO L225 Difference]: With dead ends: 2351 [2024-10-11 04:53:31,744 INFO L226 Difference]: Without dead ends: 1598 [2024-10-11 04:53:31,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:31,749 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 864 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:31,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 595 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-11 04:53:31,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-10-11 04:53:31,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1598. [2024-10-11 04:53:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1596 states have (on average 1.5921052631578947) internal successors, (2541), 1597 states have internal predecessors, (2541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2541 transitions. [2024-10-11 04:53:31,790 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2541 transitions. Word has length 60 [2024-10-11 04:53:31,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:31,790 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2541 transitions. [2024-10-11 04:53:31,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2541 transitions. [2024-10-11 04:53:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 04:53:31,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:31,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:31,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:53:31,797 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:31,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash -138572409, now seen corresponding path program 1 times [2024-10-11 04:53:31,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:31,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036446720] [2024-10-11 04:53:31,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:31,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:32,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:32,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036446720] [2024-10-11 04:53:32,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036446720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:32,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:32,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:32,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069633960] [2024-10-11 04:53:32,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:32,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:32,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:32,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:32,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:32,022 INFO L87 Difference]: Start difference. First operand 1598 states and 2541 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:32,360 INFO L93 Difference]: Finished difference Result 2186 states and 3489 transitions. [2024-10-11 04:53:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 04:53:32,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-11 04:53:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:32,371 INFO L225 Difference]: With dead ends: 2186 [2024-10-11 04:53:32,372 INFO L226 Difference]: Without dead ends: 2137 [2024-10-11 04:53:32,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:53:32,375 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 9829 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9829 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:32,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9829 Valid, 3039 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 04:53:32,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2024-10-11 04:53:32,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 1645. [2024-10-11 04:53:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1643 states have (on average 1.592818015824711) internal successors, (2617), 1644 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2617 transitions. [2024-10-11 04:53:32,416 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2617 transitions. Word has length 62 [2024-10-11 04:53:32,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:32,418 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 2617 transitions. [2024-10-11 04:53:32,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:32,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2617 transitions. [2024-10-11 04:53:32,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 04:53:32,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:32,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:32,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:53:32,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:32,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash -157852617, now seen corresponding path program 1 times [2024-10-11 04:53:32,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:32,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824640932] [2024-10-11 04:53:32,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:32,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:32,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:32,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824640932] [2024-10-11 04:53:32,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824640932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:32,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:32,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:32,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114517472] [2024-10-11 04:53:32,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:32,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:32,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:32,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:32,551 INFO L87 Difference]: Start difference. First operand 1645 states and 2617 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:32,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:32,595 INFO L93 Difference]: Finished difference Result 1826 states and 2908 transitions. [2024-10-11 04:53:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:32,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-11 04:53:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:32,603 INFO L225 Difference]: With dead ends: 1826 [2024-10-11 04:53:32,603 INFO L226 Difference]: Without dead ends: 1730 [2024-10-11 04:53:32,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:32,605 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 1490 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:32,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1626 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:32,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-10-11 04:53:32,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1726. [2024-10-11 04:53:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.5922273781902552) internal successors, (2745), 1725 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) [2024-10-11 04:53:32,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2745 transitions. [2024-10-11 04:53:32,642 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2745 transitions. Word has length 64 [2024-10-11 04:53:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:32,643 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2745 transitions. [2024-10-11 04:53:32,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2745 transitions. [2024-10-11 04:53:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 04:53:32,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:32,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:32,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:53:32,647 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:32,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:32,647 INFO L85 PathProgramCache]: Analyzing trace with hash -155707665, now seen corresponding path program 1 times [2024-10-11 04:53:32,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:32,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887360042] [2024-10-11 04:53:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:32,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:33,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:33,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887360042] [2024-10-11 04:53:33,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887360042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:33,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:33,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:33,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780705261] [2024-10-11 04:53:33,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:33,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:33,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:33,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:33,123 INFO L87 Difference]: Start difference. First operand 1726 states and 2745 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:33,386 INFO L93 Difference]: Finished difference Result 1905 states and 3029 transitions. [2024-10-11 04:53:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:33,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-11 04:53:33,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:33,394 INFO L225 Difference]: With dead ends: 1905 [2024-10-11 04:53:33,394 INFO L226 Difference]: Without dead ends: 1728 [2024-10-11 04:53:33,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-11 04:53:33,396 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 1533 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:33,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1533 Valid, 2004 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-10-11 04:53:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2024-10-11 04:53:33,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.5910672853828307) internal successors, (2743), 1725 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2743 transitions. [2024-10-11 04:53:33,435 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2743 transitions. Word has length 64 [2024-10-11 04:53:33,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:33,435 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2743 transitions. [2024-10-11 04:53:33,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:33,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2743 transitions. [2024-10-11 04:53:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 04:53:33,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:33,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:33,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:53:33,437 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:33,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:33,438 INFO L85 PathProgramCache]: Analyzing trace with hash -660670881, now seen corresponding path program 1 times [2024-10-11 04:53:33,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:33,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151186456] [2024-10-11 04:53:33,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:33,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151186456] [2024-10-11 04:53:33,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151186456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:33,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:33,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:53:33,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054376645] [2024-10-11 04:53:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:33,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:53:33,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:53:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:53:33,645 INFO L87 Difference]: Start difference. First operand 1726 states and 2743 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:33,684 INFO L93 Difference]: Finished difference Result 1732 states and 2750 transitions. [2024-10-11 04:53:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:53:33,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-11 04:53:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:33,692 INFO L225 Difference]: With dead ends: 1732 [2024-10-11 04:53:33,692 INFO L226 Difference]: Without dead ends: 1730 [2024-10-11 04:53:33,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:53:33,696 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 0 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:33,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4666 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:33,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-10-11 04:53:33,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1730. [2024-10-11 04:53:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.5891203703703705) internal successors, (2746), 1729 states have internal predecessors, (2746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2746 transitions. [2024-10-11 04:53:33,788 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2746 transitions. Word has length 65 [2024-10-11 04:53:33,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:33,789 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2746 transitions. [2024-10-11 04:53:33,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:33,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2746 transitions. [2024-10-11 04:53:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:33,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:33,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:33,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:53:33,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:33,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:33,792 INFO L85 PathProgramCache]: Analyzing trace with hash -347651057, now seen corresponding path program 1 times [2024-10-11 04:53:33,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:33,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497257458] [2024-10-11 04:53:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:33,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:33,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:33,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497257458] [2024-10-11 04:53:33,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497257458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:33,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:33,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:33,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502821674] [2024-10-11 04:53:33,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:33,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:33,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:33,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:33,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:33,903 INFO L87 Difference]: Start difference. First operand 1730 states and 2746 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:33,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:33,941 INFO L93 Difference]: Finished difference Result 2076 states and 3286 transitions. [2024-10-11 04:53:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:33,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:33,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:33,950 INFO L225 Difference]: With dead ends: 2076 [2024-10-11 04:53:33,950 INFO L226 Difference]: Without dead ends: 1895 [2024-10-11 04:53:33,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:33,954 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1503 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:33,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1691 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:33,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2024-10-11 04:53:33,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893. [2024-10-11 04:53:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1891 states have (on average 1.5848757271285034) internal successors, (2997), 1892 states have internal predecessors, (2997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2997 transitions. [2024-10-11 04:53:34,008 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2997 transitions. Word has length 66 [2024-10-11 04:53:34,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:34,008 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 2997 transitions. [2024-10-11 04:53:34,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2997 transitions. [2024-10-11 04:53:34,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:34,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:34,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:34,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:53:34,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:34,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash -307707121, now seen corresponding path program 1 times [2024-10-11 04:53:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:34,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89464449] [2024-10-11 04:53:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:34,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:34,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:34,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89464449] [2024-10-11 04:53:34,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89464449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:34,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:34,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:34,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752325435] [2024-10-11 04:53:34,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:34,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:34,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:34,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:34,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,070 INFO L87 Difference]: Start difference. First operand 1893 states and 2997 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:34,111 INFO L93 Difference]: Finished difference Result 2549 states and 4011 transitions. [2024-10-11 04:53:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:34,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:34,120 INFO L225 Difference]: With dead ends: 2549 [2024-10-11 04:53:34,121 INFO L226 Difference]: Without dead ends: 2205 [2024-10-11 04:53:34,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,123 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1501 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:34,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2024-10-11 04:53:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2203. [2024-10-11 04:53:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 2201 states have (on average 1.57519309404816) internal successors, (3467), 2202 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 3467 transitions. [2024-10-11 04:53:34,176 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 3467 transitions. Word has length 66 [2024-10-11 04:53:34,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:34,176 INFO L471 AbstractCegarLoop]: Abstraction has 2203 states and 3467 transitions. [2024-10-11 04:53:34,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 3467 transitions. [2024-10-11 04:53:34,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:34,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:34,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:34,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:53:34,178 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:34,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:34,179 INFO L85 PathProgramCache]: Analyzing trace with hash -933363185, now seen corresponding path program 1 times [2024-10-11 04:53:34,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:34,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506905180] [2024-10-11 04:53:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:34,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:34,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:34,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:34,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506905180] [2024-10-11 04:53:34,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506905180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:34,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:34,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:34,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706097421] [2024-10-11 04:53:34,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:34,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:34,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:34,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:34,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,244 INFO L87 Difference]: Start difference. First operand 2203 states and 3467 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:34,301 INFO L93 Difference]: Finished difference Result 3447 states and 5365 transitions. [2024-10-11 04:53:34,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:34,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:34,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:34,312 INFO L225 Difference]: With dead ends: 3447 [2024-10-11 04:53:34,313 INFO L226 Difference]: Without dead ends: 2793 [2024-10-11 04:53:34,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,316 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 1499 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:34,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2024-10-11 04:53:34,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2791. [2024-10-11 04:53:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2789 states have (on average 1.5571889566152743) internal successors, (4343), 2790 states have internal predecessors, (4343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4343 transitions. [2024-10-11 04:53:34,389 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4343 transitions. Word has length 66 [2024-10-11 04:53:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:34,390 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 4343 transitions. [2024-10-11 04:53:34,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4343 transitions. [2024-10-11 04:53:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:34,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:34,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:34,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:53:34,392 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:34,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:34,392 INFO L85 PathProgramCache]: Analyzing trace with hash -44629745, now seen corresponding path program 1 times [2024-10-11 04:53:34,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:34,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243168188] [2024-10-11 04:53:34,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:34,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:34,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:34,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243168188] [2024-10-11 04:53:34,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243168188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:34,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:34,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:34,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607192138] [2024-10-11 04:53:34,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:34,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:34,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:34,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:34,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,452 INFO L87 Difference]: Start difference. First operand 2791 states and 4343 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:34,524 INFO L93 Difference]: Finished difference Result 5147 states and 7881 transitions. [2024-10-11 04:53:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:34,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:34,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:34,539 INFO L225 Difference]: With dead ends: 5147 [2024-10-11 04:53:34,539 INFO L226 Difference]: Without dead ends: 3905 [2024-10-11 04:53:34,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,543 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 1497 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:34,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2024-10-11 04:53:34,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3903. [2024-10-11 04:53:34,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3903 states, 3901 states have (on average 1.5296077928736223) internal successors, (5967), 3902 states have internal predecessors, (5967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 5967 transitions. [2024-10-11 04:53:34,646 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 5967 transitions. Word has length 66 [2024-10-11 04:53:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:34,647 INFO L471 AbstractCegarLoop]: Abstraction has 3903 states and 5967 transitions. [2024-10-11 04:53:34,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 5967 transitions. [2024-10-11 04:53:34,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:53:34,648 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:34,648 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:34,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:53:34,648 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:34,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:34,649 INFO L85 PathProgramCache]: Analyzing trace with hash -79067889, now seen corresponding path program 1 times [2024-10-11 04:53:34,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:34,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443593723] [2024-10-11 04:53:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:34,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:34,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:34,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443593723] [2024-10-11 04:53:34,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443593723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:34,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:34,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:34,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909771929] [2024-10-11 04:53:34,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:34,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:34,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:34,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,717 INFO L87 Difference]: Start difference. First operand 3903 states and 5967 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:34,828 INFO L93 Difference]: Finished difference Result 8355 states and 12529 transitions. [2024-10-11 04:53:34,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:34,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:53:34,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:34,861 INFO L225 Difference]: With dead ends: 8355 [2024-10-11 04:53:34,862 INFO L226 Difference]: Without dead ends: 6001 [2024-10-11 04:53:34,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:34,868 INFO L432 NwaCegarLoop]: 1614 mSDtfsCounter, 1505 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:34,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2024-10-11 04:53:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 5999. [2024-10-11 04:53:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5997 states have (on average 1.4939136234784058) internal successors, (8959), 5998 states have internal predecessors, (8959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:35,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 8959 transitions. [2024-10-11 04:53:35,129 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 8959 transitions. Word has length 66 [2024-10-11 04:53:35,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:35,130 INFO L471 AbstractCegarLoop]: Abstraction has 5999 states and 8959 transitions. [2024-10-11 04:53:35,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:35,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 8959 transitions. [2024-10-11 04:53:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 04:53:35,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:35,131 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:35,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:53:35,132 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:35,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:35,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1522612916, now seen corresponding path program 1 times [2024-10-11 04:53:35,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:35,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357758151] [2024-10-11 04:53:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:35,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:35,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:35,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357758151] [2024-10-11 04:53:35,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357758151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:35,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:35,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:35,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821119809] [2024-10-11 04:53:35,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:35,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:35,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:35,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:35,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:35,214 INFO L87 Difference]: Start difference. First operand 5999 states and 8959 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:35,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:35,423 INFO L93 Difference]: Finished difference Result 10614 states and 15813 transitions. [2024-10-11 04:53:35,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:35,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-11 04:53:35,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:35,450 INFO L225 Difference]: With dead ends: 10614 [2024-10-11 04:53:35,450 INFO L226 Difference]: Without dead ends: 8115 [2024-10-11 04:53:35,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:35,458 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1504 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:35,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:35,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2024-10-11 04:53:35,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 8113. [2024-10-11 04:53:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8113 states, 8111 states have (on average 1.4795956108987793) internal successors, (12001), 8112 states have internal predecessors, (12001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8113 states to 8113 states and 12001 transitions. [2024-10-11 04:53:35,776 INFO L78 Accepts]: Start accepts. Automaton has 8113 states and 12001 transitions. Word has length 68 [2024-10-11 04:53:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:35,777 INFO L471 AbstractCegarLoop]: Abstraction has 8113 states and 12001 transitions. [2024-10-11 04:53:35,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:35,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8113 states and 12001 transitions. [2024-10-11 04:53:35,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:35,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:35,781 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:35,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:53:35,781 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:35,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 443992391, now seen corresponding path program 1 times [2024-10-11 04:53:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118541502] [2024-10-11 04:53:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:35,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:36,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 04:53:36,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:36,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118541502] [2024-10-11 04:53:36,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118541502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:36,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:36,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:36,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076405631] [2024-10-11 04:53:36,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:36,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:36,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:36,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:36,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:36,043 INFO L87 Difference]: Start difference. First operand 8113 states and 12001 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:37,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:37,063 INFO L93 Difference]: Finished difference Result 48831 states and 71112 transitions. [2024-10-11 04:53:37,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:37,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:37,156 INFO L225 Difference]: With dead ends: 48831 [2024-10-11 04:53:37,157 INFO L226 Difference]: Without dead ends: 42269 [2024-10-11 04:53:37,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:37,178 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8086 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8086 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:37,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8086 Valid, 3866 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42269 states. [2024-10-11 04:53:37,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42269 to 14673. [2024-10-11 04:53:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14673 states, 14671 states have (on average 1.4614545702406108) internal successors, (21441), 14672 states have internal predecessors, (21441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14673 states to 14673 states and 21441 transitions. [2024-10-11 04:53:37,816 INFO L78 Accepts]: Start accepts. Automaton has 14673 states and 21441 transitions. Word has length 86 [2024-10-11 04:53:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:37,816 INFO L471 AbstractCegarLoop]: Abstraction has 14673 states and 21441 transitions. [2024-10-11 04:53:37,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 14673 states and 21441 transitions. [2024-10-11 04:53:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:37,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:37,819 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:37,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:53:37,820 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:37,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:37,820 INFO L85 PathProgramCache]: Analyzing trace with hash 483936327, now seen corresponding path program 1 times [2024-10-11 04:53:37,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:37,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540105713] [2024-10-11 04:53:37,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:37,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 04:53:38,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:38,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540105713] [2024-10-11 04:53:38,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540105713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:38,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:38,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:38,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301249899] [2024-10-11 04:53:38,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:38,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:38,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:38,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:38,084 INFO L87 Difference]: Start difference. First operand 14673 states and 21441 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:38,999 INFO L93 Difference]: Finished difference Result 55391 states and 80552 transitions. [2024-10-11 04:53:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:38,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:39,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:39,088 INFO L225 Difference]: With dead ends: 55391 [2024-10-11 04:53:39,089 INFO L226 Difference]: Without dead ends: 48829 [2024-10-11 04:53:39,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:39,108 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 8138 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8138 SdHoareTripleChecker+Valid, 3766 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:39,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8138 Valid, 3766 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48829 states. [2024-10-11 04:53:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48829 to 24529. [2024-10-11 04:53:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24529 states, 24527 states have (on average 1.4482407143148368) internal successors, (35521), 24528 states have internal predecessors, (35521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24529 states to 24529 states and 35521 transitions. [2024-10-11 04:53:39,830 INFO L78 Accepts]: Start accepts. Automaton has 24529 states and 35521 transitions. Word has length 86 [2024-10-11 04:53:39,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:39,831 INFO L471 AbstractCegarLoop]: Abstraction has 24529 states and 35521 transitions. [2024-10-11 04:53:39,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:39,831 INFO L276 IsEmpty]: Start isEmpty. Operand 24529 states and 35521 transitions. [2024-10-11 04:53:39,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:39,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:39,834 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:39,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 04:53:39,834 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:39,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:39,836 INFO L85 PathProgramCache]: Analyzing trace with hash -141719737, now seen corresponding path program 1 times [2024-10-11 04:53:39,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:39,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195320958] [2024-10-11 04:53:39,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:39,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:40,143 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 04:53:40,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:40,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195320958] [2024-10-11 04:53:40,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195320958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:40,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:40,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:40,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758118008] [2024-10-11 04:53:40,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:40,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:40,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:40,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:40,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:40,146 INFO L87 Difference]: Start difference. First operand 24529 states and 35521 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:41,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:41,796 INFO L93 Difference]: Finished difference Result 61951 states and 89992 transitions. [2024-10-11 04:53:41,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:41,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:41,889 INFO L225 Difference]: With dead ends: 61951 [2024-10-11 04:53:41,890 INFO L226 Difference]: Without dead ends: 55389 [2024-10-11 04:53:41,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:41,912 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 8187 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8187 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:41,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8187 Valid, 3768 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:41,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55389 states. [2024-10-11 04:53:42,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55389 to 31089. [2024-10-11 04:53:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31089 states, 31087 states have (on average 1.4462958793064624) internal successors, (44961), 31088 states have internal predecessors, (44961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31089 states to 31089 states and 44961 transitions. [2024-10-11 04:53:42,921 INFO L78 Accepts]: Start accepts. Automaton has 31089 states and 44961 transitions. Word has length 86 [2024-10-11 04:53:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:42,921 INFO L471 AbstractCegarLoop]: Abstraction has 31089 states and 44961 transitions. [2024-10-11 04:53:42,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 31089 states and 44961 transitions. [2024-10-11 04:53:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:42,925 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:42,925 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:42,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 04:53:42,925 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:42,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:42,926 INFO L85 PathProgramCache]: Analyzing trace with hash 747013703, now seen corresponding path program 1 times [2024-10-11 04:53:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:42,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967140418] [2024-10-11 04:53:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:42,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 04:53:43,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:43,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967140418] [2024-10-11 04:53:43,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967140418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:43,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:43,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:43,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417340571] [2024-10-11 04:53:43,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:43,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:43,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:43,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:43,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:43,114 INFO L87 Difference]: Start difference. First operand 31089 states and 44961 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:44,486 INFO L93 Difference]: Finished difference Result 68511 states and 99432 transitions. [2024-10-11 04:53:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:44,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:44,590 INFO L225 Difference]: With dead ends: 68511 [2024-10-11 04:53:44,590 INFO L226 Difference]: Without dead ends: 61949 [2024-10-11 04:53:44,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:44,614 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8090 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8090 SdHoareTripleChecker+Valid, 3876 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:44,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8090 Valid, 3876 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:44,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61949 states. [2024-10-11 04:53:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61949 to 37649. [2024-10-11 04:53:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37649 states, 37647 states have (on average 1.4450288203575319) internal successors, (54401), 37648 states have internal predecessors, (54401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37649 states to 37649 states and 54401 transitions. [2024-10-11 04:53:45,854 INFO L78 Accepts]: Start accepts. Automaton has 37649 states and 54401 transitions. Word has length 86 [2024-10-11 04:53:45,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:45,855 INFO L471 AbstractCegarLoop]: Abstraction has 37649 states and 54401 transitions. [2024-10-11 04:53:45,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 37649 states and 54401 transitions. [2024-10-11 04:53:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:53:45,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:45,859 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:45,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 04:53:45,859 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:45,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:45,860 INFO L85 PathProgramCache]: Analyzing trace with hash 712575559, now seen corresponding path program 1 times [2024-10-11 04:53:45,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:45,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370065838] [2024-10-11 04:53:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:45,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 04:53:46,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:46,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370065838] [2024-10-11 04:53:46,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370065838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:46,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:46,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:46,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816729322] [2024-10-11 04:53:46,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:46,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:46,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:46,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:46,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:46,041 INFO L87 Difference]: Start difference. First operand 37649 states and 54401 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:47,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:47,728 INFO L93 Difference]: Finished difference Result 75071 states and 108872 transitions. [2024-10-11 04:53:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:47,729 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:47,817 INFO L225 Difference]: With dead ends: 75071 [2024-10-11 04:53:47,817 INFO L226 Difference]: Without dead ends: 68509 [2024-10-11 04:53:47,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:47,843 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8030 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8030 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:47,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8030 Valid, 4006 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:47,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68509 states. [2024-10-11 04:53:49,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68509 to 44209. [2024-10-11 04:53:49,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44209 states, 44207 states have (on average 1.4441378062297827) internal successors, (63841), 44208 states have internal predecessors, (63841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44209 states to 44209 states and 63841 transitions. [2024-10-11 04:53:49,123 INFO L78 Accepts]: Start accepts. Automaton has 44209 states and 63841 transitions. Word has length 86 [2024-10-11 04:53:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:49,123 INFO L471 AbstractCegarLoop]: Abstraction has 44209 states and 63841 transitions. [2024-10-11 04:53:49,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 44209 states and 63841 transitions. [2024-10-11 04:53:49,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 04:53:49,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:49,129 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:49,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 04:53:49,129 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:49,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:49,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1343316655, now seen corresponding path program 1 times [2024-10-11 04:53:49,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:49,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610991035] [2024-10-11 04:53:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:49,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:49,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610991035] [2024-10-11 04:53:49,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610991035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:49,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:49,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:49,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225942878] [2024-10-11 04:53:49,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:49,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:49,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:49,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:49,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:49,239 INFO L87 Difference]: Start difference. First operand 44209 states and 63841 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:49,977 INFO L93 Difference]: Finished difference Result 74186 states and 107545 transitions. [2024-10-11 04:53:49,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:49,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 04:53:49,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:50,024 INFO L225 Difference]: With dead ends: 74186 [2024-10-11 04:53:50,024 INFO L226 Difference]: Without dead ends: 31528 [2024-10-11 04:53:50,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:50,059 INFO L432 NwaCegarLoop]: 1607 mSDtfsCounter, 58 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:50,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3152 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:50,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31528 states. [2024-10-11 04:53:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31528 to 31526. [2024-10-11 04:53:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31526 states, 31524 states have (on average 1.4512752188808526) internal successors, (45750), 31525 states have internal predecessors, (45750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:51,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31526 states to 31526 states and 45750 transitions. [2024-10-11 04:53:51,280 INFO L78 Accepts]: Start accepts. Automaton has 31526 states and 45750 transitions. Word has length 88 [2024-10-11 04:53:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:51,280 INFO L471 AbstractCegarLoop]: Abstraction has 31526 states and 45750 transitions. [2024-10-11 04:53:51,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 31526 states and 45750 transitions. [2024-10-11 04:53:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 04:53:51,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:51,283 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:51,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 04:53:51,283 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:51,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:51,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2082755052, now seen corresponding path program 1 times [2024-10-11 04:53:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:51,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139945696] [2024-10-11 04:53:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:51,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:51,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:53:51,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:51,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139945696] [2024-10-11 04:53:51,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139945696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:51,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:51,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:53:51,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240012711] [2024-10-11 04:53:51,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:51,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:51,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:51,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:51,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:51,492 INFO L87 Difference]: Start difference. First operand 31526 states and 45750 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:52,766 INFO L93 Difference]: Finished difference Result 59188 states and 86077 transitions. [2024-10-11 04:53:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:52,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 04:53:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:52,822 INFO L225 Difference]: With dead ends: 59188 [2024-10-11 04:53:52,822 INFO L226 Difference]: Without dead ends: 54578 [2024-10-11 04:53:52,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:52,830 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 8040 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8040 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:52,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8040 Valid, 3949 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54578 states. [2024-10-11 04:53:53,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54578 to 36134. [2024-10-11 04:53:53,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36134 states, 36132 states have (on average 1.4504040739510684) internal successors, (52406), 36133 states have internal predecessors, (52406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36134 states to 36134 states and 52406 transitions. [2024-10-11 04:53:54,005 INFO L78 Accepts]: Start accepts. Automaton has 36134 states and 52406 transitions. Word has length 88 [2024-10-11 04:53:54,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:54,005 INFO L471 AbstractCegarLoop]: Abstraction has 36134 states and 52406 transitions. [2024-10-11 04:53:54,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:54,006 INFO L276 IsEmpty]: Start isEmpty. Operand 36134 states and 52406 transitions. [2024-10-11 04:53:54,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 04:53:54,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:54,009 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:54,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 04:53:54,009 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:54,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1555080975, now seen corresponding path program 1 times [2024-10-11 04:53:54,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:54,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370488513] [2024-10-11 04:53:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:54,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:54,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:54,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370488513] [2024-10-11 04:53:54,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370488513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:54,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:54,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:54,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803997682] [2024-10-11 04:53:54,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:54,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:54,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:54,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:54,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:54,138 INFO L87 Difference]: Start difference. First operand 36134 states and 52406 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:54,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:54,994 INFO L93 Difference]: Finished difference Result 53418 states and 77368 transitions. [2024-10-11 04:53:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:54,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-11 04:53:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:55,017 INFO L225 Difference]: With dead ends: 53418 [2024-10-11 04:53:55,017 INFO L226 Difference]: Without dead ends: 18856 [2024-10-11 04:53:55,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:55,039 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 53 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:55,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3137 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18856 states. [2024-10-11 04:53:55,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18856 to 18854. [2024-10-11 04:53:55,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18854 states, 18852 states have (on average 1.4431360067897305) internal successors, (27206), 18853 states have internal predecessors, (27206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:55,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18854 states to 18854 states and 27206 transitions. [2024-10-11 04:53:55,577 INFO L78 Accepts]: Start accepts. Automaton has 18854 states and 27206 transitions. Word has length 89 [2024-10-11 04:53:55,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:55,578 INFO L471 AbstractCegarLoop]: Abstraction has 18854 states and 27206 transitions. [2024-10-11 04:53:55,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:55,578 INFO L276 IsEmpty]: Start isEmpty. Operand 18854 states and 27206 transitions. [2024-10-11 04:53:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 04:53:55,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:55,580 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:55,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 04:53:55,581 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:55,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:55,581 INFO L85 PathProgramCache]: Analyzing trace with hash 433774111, now seen corresponding path program 1 times [2024-10-11 04:53:55,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:55,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918585736] [2024-10-11 04:53:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:55,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:55,684 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:55,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:55,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918585736] [2024-10-11 04:53:55,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918585736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:55,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:55,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:55,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131406139] [2024-10-11 04:53:55,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:55,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:55,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:55,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:55,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:55,686 INFO L87 Difference]: Start difference. First operand 18854 states and 27206 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:55,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:55,908 INFO L93 Difference]: Finished difference Result 27498 states and 39568 transitions. [2024-10-11 04:53:55,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:55,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-10-11 04:53:55,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:55,921 INFO L225 Difference]: With dead ends: 27498 [2024-10-11 04:53:55,921 INFO L226 Difference]: Without dead ends: 10216 [2024-10-11 04:53:55,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:55,938 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 50 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:55,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3122 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:55,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10216 states. [2024-10-11 04:53:56,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10216 to 10214. [2024-10-11 04:53:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10214 states, 10212 states have (on average 1.4420289855072463) internal successors, (14726), 10213 states have internal predecessors, (14726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10214 states to 10214 states and 14726 transitions. [2024-10-11 04:53:56,269 INFO L78 Accepts]: Start accepts. Automaton has 10214 states and 14726 transitions. Word has length 91 [2024-10-11 04:53:56,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:56,269 INFO L471 AbstractCegarLoop]: Abstraction has 10214 states and 14726 transitions. [2024-10-11 04:53:56,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 10214 states and 14726 transitions. [2024-10-11 04:53:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 04:53:56,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:56,272 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:56,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 04:53:56,272 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:56,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash 475149517, now seen corresponding path program 1 times [2024-10-11 04:53:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:56,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376154750] [2024-10-11 04:53:56,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:56,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:56,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376154750] [2024-10-11 04:53:56,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376154750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:56,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:56,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:56,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358120732] [2024-10-11 04:53:56,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:56,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:56,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:56,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:56,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:56,386 INFO L87 Difference]: Start difference. First operand 10214 states and 14726 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:56,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:56,525 INFO L93 Difference]: Finished difference Result 14538 states and 20848 transitions. [2024-10-11 04:53:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:56,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-11 04:53:56,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:56,537 INFO L225 Difference]: With dead ends: 14538 [2024-10-11 04:53:56,537 INFO L226 Difference]: Without dead ends: 5896 [2024-10-11 04:53:56,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:56,546 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 47 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:56,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3107 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:56,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2024-10-11 04:53:56,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5894. [2024-10-11 04:53:56,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 1.4504412763068568) internal successors, (8546), 5893 states have internal predecessors, (8546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8546 transitions. [2024-10-11 04:53:56,700 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8546 transitions. Word has length 93 [2024-10-11 04:53:56,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:56,700 INFO L471 AbstractCegarLoop]: Abstraction has 5894 states and 8546 transitions. [2024-10-11 04:53:56,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:56,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8546 transitions. [2024-10-11 04:53:56,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 04:53:56,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:56,702 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:56,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 04:53:56,702 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:56,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:56,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1948500741, now seen corresponding path program 1 times [2024-10-11 04:53:56,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:56,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341730612] [2024-10-11 04:53:56,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:56,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:56,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:56,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341730612] [2024-10-11 04:53:56,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341730612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:56,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:56,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:56,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853636765] [2024-10-11 04:53:56,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:56,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:56,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:56,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:56,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:56,806 INFO L87 Difference]: Start difference. First operand 5894 states and 8546 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:56,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:56,950 INFO L93 Difference]: Finished difference Result 8058 states and 11578 transitions. [2024-10-11 04:53:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:56,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 04:53:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:56,957 INFO L225 Difference]: With dead ends: 8058 [2024-10-11 04:53:56,957 INFO L226 Difference]: Without dead ends: 3736 [2024-10-11 04:53:56,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:56,962 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 44 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:56,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3092 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2024-10-11 04:53:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3734. [2024-10-11 04:53:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3734 states, 3732 states have (on average 1.469989281886388) internal successors, (5486), 3733 states have internal predecessors, (5486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 5486 transitions. [2024-10-11 04:53:57,092 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 5486 transitions. Word has length 95 [2024-10-11 04:53:57,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:57,093 INFO L471 AbstractCegarLoop]: Abstraction has 3734 states and 5486 transitions. [2024-10-11 04:53:57,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:57,093 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 5486 transitions. [2024-10-11 04:53:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 04:53:57,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:57,095 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:57,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 04:53:57,096 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:57,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:57,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1337448105, now seen corresponding path program 1 times [2024-10-11 04:53:57,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:57,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027182765] [2024-10-11 04:53:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:57,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:57,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:57,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027182765] [2024-10-11 04:53:57,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027182765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:57,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:57,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:57,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665627819] [2024-10-11 04:53:57,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:57,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:57,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:57,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:57,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:57,226 INFO L87 Difference]: Start difference. First operand 3734 states and 5486 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:57,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:57,298 INFO L93 Difference]: Finished difference Result 4818 states and 6988 transitions. [2024-10-11 04:53:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:57,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-10-11 04:53:57,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:57,304 INFO L225 Difference]: With dead ends: 4818 [2024-10-11 04:53:57,305 INFO L226 Difference]: Without dead ends: 2656 [2024-10-11 04:53:57,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:57,308 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 41 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:57,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3077 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2024-10-11 04:53:57,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2654. [2024-10-11 04:53:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2652 states have (on average 1.4973604826546003) internal successors, (3971), 2653 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3971 transitions. [2024-10-11 04:53:57,388 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3971 transitions. Word has length 97 [2024-10-11 04:53:57,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:57,389 INFO L471 AbstractCegarLoop]: Abstraction has 2654 states and 3971 transitions. [2024-10-11 04:53:57,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:57,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3971 transitions. [2024-10-11 04:53:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 04:53:57,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:57,391 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:57,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 04:53:57,392 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:57,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash 54256087, now seen corresponding path program 1 times [2024-10-11 04:53:57,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:57,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964628452] [2024-10-11 04:53:57,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:57,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:57,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:57,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964628452] [2024-10-11 04:53:57,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964628452] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:57,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935768726] [2024-10-11 04:53:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:57,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:57,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:57,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:57,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 04:53:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:58,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:53:58,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:58,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:54:00,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:00,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935768726] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:54:00,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:54:00,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-10-11 04:54:00,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953437759] [2024-10-11 04:54:00,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:54:00,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 04:54:00,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 04:54:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-10-11 04:54:00,062 INFO L87 Difference]: Start difference. First operand 2654 states and 3971 transitions. Second operand has 25 states, 25 states have (on average 10.48) internal successors, (262), 24 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:01,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:01,769 INFO L93 Difference]: Finished difference Result 7168 states and 10188 transitions. [2024-10-11 04:54:01,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 04:54:01,769 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.48) internal successors, (262), 24 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 04:54:01,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:01,779 INFO L225 Difference]: With dead ends: 7168 [2024-10-11 04:54:01,779 INFO L226 Difference]: Without dead ends: 6086 [2024-10-11 04:54:01,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=629, Invalid=2233, Unknown=0, NotChecked=0, Total=2862 [2024-10-11 04:54:01,783 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 22644 mSDsluCounter, 6389 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22644 SdHoareTripleChecker+Valid, 7895 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:01,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22644 Valid, 7895 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 04:54:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2024-10-11 04:54:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 6014. [2024-10-11 04:54:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 6012 states have (on average 1.4115103127079176) internal successors, (8486), 6013 states have internal predecessors, (8486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:01,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 8486 transitions. [2024-10-11 04:54:01,912 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 8486 transitions. Word has length 99 [2024-10-11 04:54:01,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:01,913 INFO L471 AbstractCegarLoop]: Abstraction has 6014 states and 8486 transitions. [2024-10-11 04:54:01,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.48) internal successors, (262), 24 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 8486 transitions. [2024-10-11 04:54:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:54:01,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:01,915 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:54:01,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 04:54:02,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 04:54:02,120 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:02,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash -256420804, now seen corresponding path program 1 times [2024-10-11 04:54:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:02,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384818435] [2024-10-11 04:54:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:03,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:03,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384818435] [2024-10-11 04:54:03,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384818435] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:54:03,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562846023] [2024-10-11 04:54:03,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:03,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:54:03,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:54:03,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:54:03,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 04:54:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:03,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-11 04:54:03,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:54:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:04,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:54:06,503 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:06,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562846023] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:54:06,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:54:06,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 14] total 40 [2024-10-11 04:54:06,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511989196] [2024-10-11 04:54:06,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:54:06,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-11 04:54:06,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-11 04:54:06,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1361, Unknown=0, NotChecked=0, Total=1560 [2024-10-11 04:54:06,506 INFO L87 Difference]: Start difference. First operand 6014 states and 8486 transitions. Second operand has 40 states, 40 states have (on average 6.75) internal successors, (270), 40 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:12,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:12,189 INFO L93 Difference]: Finished difference Result 35558 states and 48488 transitions. [2024-10-11 04:54:12,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-11 04:54:12,190 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 6.75) internal successors, (270), 40 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-11 04:54:12,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:12,219 INFO L225 Difference]: With dead ends: 35558 [2024-10-11 04:54:12,219 INFO L226 Difference]: Without dead ends: 31116 [2024-10-11 04:54:12,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2953 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1906, Invalid=8194, Unknown=0, NotChecked=0, Total=10100 [2024-10-11 04:54:12,228 INFO L432 NwaCegarLoop]: 1544 mSDtfsCounter, 22308 mSDsluCounter, 8867 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22308 SdHoareTripleChecker+Valid, 10411 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:12,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22308 Valid, 10411 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 04:54:12,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31116 states. [2024-10-11 04:54:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31116 to 30374. [2024-10-11 04:54:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30374 states, 30372 states have (on average 1.3471618596075332) internal successors, (40916), 30373 states have internal predecessors, (40916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30374 states to 30374 states and 40916 transitions. [2024-10-11 04:54:13,182 INFO L78 Accepts]: Start accepts. Automaton has 30374 states and 40916 transitions. Word has length 100 [2024-10-11 04:54:13,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:13,182 INFO L471 AbstractCegarLoop]: Abstraction has 30374 states and 40916 transitions. [2024-10-11 04:54:13,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 6.75) internal successors, (270), 40 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:13,183 INFO L276 IsEmpty]: Start isEmpty. Operand 30374 states and 40916 transitions. [2024-10-11 04:54:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:54:13,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:13,185 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:54:13,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 04:54:13,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 04:54:13,386 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:13,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:13,387 INFO L85 PathProgramCache]: Analyzing trace with hash 387149573, now seen corresponding path program 1 times [2024-10-11 04:54:13,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:13,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726623731] [2024-10-11 04:54:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:13,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:13,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726623731] [2024-10-11 04:54:13,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726623731] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:54:13,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997483267] [2024-10-11 04:54:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:13,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:54:13,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:54:13,702 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:54:13,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 04:54:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:13,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 04:54:13,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:54:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:14,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:54:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:15,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997483267] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:54:15,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:54:15,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-10-11 04:54:15,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193140559] [2024-10-11 04:54:15,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:54:15,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 04:54:15,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 04:54:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-10-11 04:54:15,020 INFO L87 Difference]: Start difference. First operand 30374 states and 40916 transitions. Second operand has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:17,289 INFO L93 Difference]: Finished difference Result 90500 states and 121559 transitions. [2024-10-11 04:54:17,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 04:54:17,290 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-10-11 04:54:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:17,376 INFO L225 Difference]: With dead ends: 90500 [2024-10-11 04:54:17,376 INFO L226 Difference]: Without dead ends: 61698 [2024-10-11 04:54:17,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 04:54:17,415 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 9488 mSDsluCounter, 4950 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9488 SdHoareTripleChecker+Valid, 6482 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:17,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9488 Valid, 6482 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 04:54:17,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61698 states. [2024-10-11 04:54:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61698 to 60854. [2024-10-11 04:54:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60854 states, 60852 states have (on average 1.324623677118254) internal successors, (80606), 60853 states have internal predecessors, (80606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60854 states to 60854 states and 80606 transitions. [2024-10-11 04:54:19,813 INFO L78 Accepts]: Start accepts. Automaton has 60854 states and 80606 transitions. Word has length 101 [2024-10-11 04:54:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:19,813 INFO L471 AbstractCegarLoop]: Abstraction has 60854 states and 80606 transitions. [2024-10-11 04:54:19,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 22 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:54:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 60854 states and 80606 transitions. [2024-10-11 04:54:19,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-11 04:54:19,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:19,819 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:54:19,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 04:54:20,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:54:20,020 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:20,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:20,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1493735660, now seen corresponding path program 1 times [2024-10-11 04:54:20,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:20,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912930522] [2024-10-11 04:54:20,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:20,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:20,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:20,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912930522] [2024-10-11 04:54:20,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912930522] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:54:20,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854603071] [2024-10-11 04:54:20,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:20,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:54:20,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:54:20,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:54:20,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 04:54:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:20,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-11 04:54:20,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:54:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:54:23,094 INFO L311 TraceCheckSpWp]: Computing backward predicates...