./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 065db717d2cdf97087f1b115414109818504267e957198e710d38901ef11a98a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:57:56,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:57:56,326 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:57:56,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:57:56,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:57:56,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:57:56,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:57:56,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:57:56,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:57:56,365 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:57:56,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:57:56,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:57:56,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:57:56,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:57:56,372 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:57:56,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:57:56,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:57:56,373 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:57:56,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:57:56,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:57:56,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:57:56,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:57:56,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:57:56,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:57:56,375 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:57:56,375 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:57:56,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:57:56,376 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:57:56,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:57:56,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:57:56,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:57:56,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:57:56,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:57:56,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:57:56,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:57:56,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:57:56,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:57:56,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:57:56,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:57:56,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:57:56,381 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:57:56,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:57:56,381 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 065db717d2cdf97087f1b115414109818504267e957198e710d38901ef11a98a [2024-10-14 04:57:56,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:57:56,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:57:56,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:57:56,669 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:57:56,669 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:57:56,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c [2024-10-14 04:57:58,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:57:58,625 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:57:58,626 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c [2024-10-14 04:57:58,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6ed1369/e44cfc6d5bf148cab34b0f8e2bce8476/FLAGeac8c760b [2024-10-14 04:57:58,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6ed1369/e44cfc6d5bf148cab34b0f8e2bce8476 [2024-10-14 04:57:58,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:57:58,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:57:58,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:57:58,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:57:58,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:57:58,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:57:58" (1/1) ... [2024-10-14 04:57:58,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7574c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:58, skipping insertion in model container [2024-10-14 04:57:58,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:57:58" (1/1) ... [2024-10-14 04:57:58,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:57:59,176 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c[11640,11653] [2024-10-14 04:57:59,212 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c[15147,15160] [2024-10-14 04:57:59,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:57:59,913 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:57:59,942 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c[11640,11653] [2024-10-14 04:57:59,955 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c[15147,15160] [2024-10-14 04:58:00,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:58:00,384 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:58:00,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00 WrapperNode [2024-10-14 04:58:00,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:58:00,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:58:00,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:58:00,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:58:00,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:00,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:00,811 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5099 [2024-10-14 04:58:00,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:58:00,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:58:00,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:58:00,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:58:00,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:00,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:00,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,052 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 04:58:01,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:58:01,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:58:01,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:58:01,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:58:01,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (1/1) ... [2024-10-14 04:58:01,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:58:01,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:01,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:58:01,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:58:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:58:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:58:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:58:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:58:01,575 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:58:01,577 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:58:05,728 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-10-14 04:58:05,729 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:58:05,799 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:58:05,799 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 04:58:05,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:58:05 BoogieIcfgContainer [2024-10-14 04:58:05,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:58:05,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:58:05,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:58:05,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:58:05,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:57:58" (1/3) ... [2024-10-14 04:58:05,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fd791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:58:05, skipping insertion in model container [2024-10-14 04:58:05,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:58:00" (2/3) ... [2024-10-14 04:58:05,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fd791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:58:05, skipping insertion in model container [2024-10-14 04:58:05,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:58:05" (3/3) ... [2024-10-14 04:58:05,808 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label08.c [2024-10-14 04:58:05,825 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:58:05,826 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:58:05,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:58:05,912 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;@15ae5f16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:58:05,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:58:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 04:58:05,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:05,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:05,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:05,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:05,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1603356568, now seen corresponding path program 1 times [2024-10-14 04:58:05,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:05,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198424558] [2024-10-14 04:58:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:05,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:06,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:06,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:06,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198424558] [2024-10-14 04:58:06,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198424558] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:06,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:06,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 04:58:06,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130698567] [2024-10-14 04:58:06,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:06,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 04:58:06,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:06,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 04:58:06,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 04:58:06,235 INFO L87 Difference]: Start difference. First operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:06,352 INFO L93 Difference]: Finished difference Result 1633 states and 3216 transitions. [2024-10-14 04:58:06,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 04:58:06,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-10-14 04:58:06,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:06,384 INFO L225 Difference]: With dead ends: 1633 [2024-10-14 04:58:06,385 INFO L226 Difference]: Without dead ends: 830 [2024-10-14 04:58:06,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 04:58:06,400 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:06,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1571 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-14 04:58:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2024-10-14 04:58:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8973429951690821) internal successors, (1571), 829 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1571 transitions. [2024-10-14 04:58:06,496 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1571 transitions. Word has length 21 [2024-10-14 04:58:06,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:06,496 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1571 transitions. [2024-10-14 04:58:06,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1571 transitions. [2024-10-14 04:58:06,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 04:58:06,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:06,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:06,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:58:06,501 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:06,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:06,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1103262826, now seen corresponding path program 1 times [2024-10-14 04:58:06,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:06,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557388629] [2024-10-14 04:58:06,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:06,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:06,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:06,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557388629] [2024-10-14 04:58:06,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557388629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:06,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:06,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:58:06,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133154159] [2024-10-14 04:58:06,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:06,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:58:06,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:06,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:58:06,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:58:06,703 INFO L87 Difference]: Start difference. First operand 830 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:06,804 INFO L93 Difference]: Finished difference Result 874 states and 1640 transitions. [2024-10-14 04:58:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:58:06,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-10-14 04:58:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:06,809 INFO L225 Difference]: With dead ends: 874 [2024-10-14 04:58:06,810 INFO L226 Difference]: Without dead ends: 830 [2024-10-14 04:58:06,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:58:06,811 INFO L432 NwaCegarLoop]: 1568 mSDtfsCounter, 0 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:06,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4669 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:06,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-14 04:58:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2024-10-14 04:58:06,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8599033816425121) internal successors, (1540), 829 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1540 transitions. [2024-10-14 04:58:06,837 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1540 transitions. Word has length 21 [2024-10-14 04:58:06,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:06,837 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1540 transitions. [2024-10-14 04:58:06,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:06,838 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1540 transitions. [2024-10-14 04:58:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 04:58:06,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:06,838 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] [2024-10-14 04:58:06,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:58:06,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:06,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:06,839 INFO L85 PathProgramCache]: Analyzing trace with hash -628274308, now seen corresponding path program 1 times [2024-10-14 04:58:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:06,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665846507] [2024-10-14 04:58:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:06,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:06,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:06,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665846507] [2024-10-14 04:58:06,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665846507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:06,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:06,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 04:58:06,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192628491] [2024-10-14 04:58:06,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:06,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:06,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:06,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:06,944 INFO L87 Difference]: Start difference. First operand 830 states and 1540 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:10,047 INFO L93 Difference]: Finished difference Result 2334 states and 4413 transitions. [2024-10-14 04:58:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:10,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-10-14 04:58:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:10,055 INFO L225 Difference]: With dead ends: 2334 [2024-10-14 04:58:10,055 INFO L226 Difference]: Without dead ends: 1581 [2024-10-14 04:58:10,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:10,058 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 941 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:10,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 213 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-14 04:58:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-14 04:58:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-14 04:58:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1579 states have (on average 1.8233058898036731) internal successors, (2879), 1580 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2879 transitions. [2024-10-14 04:58:10,093 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2879 transitions. Word has length 29 [2024-10-14 04:58:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:10,093 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2879 transitions. [2024-10-14 04:58:10,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2879 transitions. [2024-10-14 04:58:10,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 04:58:10,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:10,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:10,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:58:10,096 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:10,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:10,096 INFO L85 PathProgramCache]: Analyzing trace with hash 51546625, now seen corresponding path program 1 times [2024-10-14 04:58:10,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:10,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265023106] [2024-10-14 04:58:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:10,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:10,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:10,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265023106] [2024-10-14 04:58:10,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265023106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:10,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:10,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:10,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406117860] [2024-10-14 04:58:10,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:10,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:10,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:10,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:10,310 INFO L87 Difference]: Start difference. First operand 1581 states and 2879 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:10,589 INFO L93 Difference]: Finished difference Result 1991 states and 3539 transitions. [2024-10-14 04:58:10,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 04:58:10,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-10-14 04:58:10,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:10,598 INFO L225 Difference]: With dead ends: 1991 [2024-10-14 04:58:10,598 INFO L226 Difference]: Without dead ends: 1950 [2024-10-14 04:58:10,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-14 04:58:10,603 INFO L432 NwaCegarLoop]: 1533 mSDtfsCounter, 7933 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7933 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:10,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7933 Valid, 2700 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:10,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2024-10-14 04:58:10,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1620. [2024-10-14 04:58:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1618 states have (on average 1.8182941903584673) internal successors, (2942), 1619 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2942 transitions. [2024-10-14 04:58:10,649 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2942 transitions. Word has length 51 [2024-10-14 04:58:10,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:10,650 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2942 transitions. [2024-10-14 04:58:10,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2942 transitions. [2024-10-14 04:58:10,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 04:58:10,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:10,654 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:10,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:58:10,657 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:10,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:10,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2145916561, now seen corresponding path program 1 times [2024-10-14 04:58:10,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:10,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582409578] [2024-10-14 04:58:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:10,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582409578] [2024-10-14 04:58:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582409578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:10,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:10,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:10,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79927300] [2024-10-14 04:58:10,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:10,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:10,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:10,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:10,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:10,748 INFO L87 Difference]: Start difference. First operand 1620 states and 2942 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:10,796 INFO L93 Difference]: Finished difference Result 1769 states and 3181 transitions. [2024-10-14 04:58:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:10,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-14 04:58:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:10,805 INFO L225 Difference]: With dead ends: 1769 [2024-10-14 04:58:10,805 INFO L226 Difference]: Without dead ends: 1689 [2024-10-14 04:58:10,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:10,810 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 1480 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:10,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1595 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:10,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-10-14 04:58:10,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1687. [2024-10-14 04:58:10,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1685 states have (on average 1.8089020771513353) internal successors, (3048), 1686 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 3048 transitions. [2024-10-14 04:58:10,851 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 3048 transitions. Word has length 53 [2024-10-14 04:58:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:10,853 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 3048 transitions. [2024-10-14 04:58:10,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 3048 transitions. [2024-10-14 04:58:10,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 04:58:10,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:10,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:10,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:58:10,857 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:10,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:10,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2146905783, now seen corresponding path program 1 times [2024-10-14 04:58:10,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:10,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986656541] [2024-10-14 04:58:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:10,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:11,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:11,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986656541] [2024-10-14 04:58:11,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986656541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:11,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:11,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127050725] [2024-10-14 04:58:11,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:11,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:11,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:11,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:11,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:11,194 INFO L87 Difference]: Start difference. First operand 1687 states and 3048 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:11,374 INFO L93 Difference]: Finished difference Result 1836 states and 3284 transitions. [2024-10-14 04:58:11,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:11,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-14 04:58:11,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:11,381 INFO L225 Difference]: With dead ends: 1836 [2024-10-14 04:58:11,381 INFO L226 Difference]: Without dead ends: 1689 [2024-10-14 04:58:11,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:58:11,383 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 4473 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:11,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 1778 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:11,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-10-14 04:58:11,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1687. [2024-10-14 04:58:11,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1685 states have (on average 1.8077151335311572) internal successors, (3046), 1686 states have internal predecessors, (3046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 3046 transitions. [2024-10-14 04:58:11,423 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 3046 transitions. Word has length 53 [2024-10-14 04:58:11,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:11,423 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 3046 transitions. [2024-10-14 04:58:11,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 3046 transitions. [2024-10-14 04:58:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-14 04:58:11,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:11,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:11,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:58:11,425 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:11,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:11,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2036322024, now seen corresponding path program 1 times [2024-10-14 04:58:11,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:11,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446387635] [2024-10-14 04:58:11,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:11,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:11,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:11,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:11,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446387635] [2024-10-14 04:58:11,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446387635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:11,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:11,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:58:11,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035590015] [2024-10-14 04:58:11,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:11,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:58:11,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:11,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:58:11,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:58:11,577 INFO L87 Difference]: Start difference. First operand 1687 states and 3046 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:11,619 INFO L93 Difference]: Finished difference Result 1693 states and 3053 transitions. [2024-10-14 04:58:11,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:58:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-14 04:58:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:11,626 INFO L225 Difference]: With dead ends: 1693 [2024-10-14 04:58:11,626 INFO L226 Difference]: Without dead ends: 1691 [2024-10-14 04:58:11,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:58:11,628 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 0 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4600 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:11,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4600 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2024-10-14 04:58:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2024-10-14 04:58:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1689 states have (on average 1.8052101835405565) internal successors, (3049), 1690 states have internal predecessors, (3049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 3049 transitions. [2024-10-14 04:58:11,660 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 3049 transitions. Word has length 54 [2024-10-14 04:58:11,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:11,660 INFO L471 AbstractCegarLoop]: Abstraction has 1691 states and 3049 transitions. [2024-10-14 04:58:11,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 3049 transitions. [2024-10-14 04:58:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:11,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:11,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:11,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:58:11,662 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:11,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1922958665, now seen corresponding path program 1 times [2024-10-14 04:58:11,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:11,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732638228] [2024-10-14 04:58:11,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:11,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:11,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:11,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732638228] [2024-10-14 04:58:11,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732638228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:11,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:11,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:11,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015645447] [2024-10-14 04:58:11,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:11,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:11,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:11,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:11,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:11,716 INFO L87 Difference]: Start difference. First operand 1691 states and 3049 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:11,753 INFO L93 Difference]: Finished difference Result 1853 states and 3302 transitions. [2024-10-14 04:58:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:11,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-14 04:58:11,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:11,760 INFO L225 Difference]: With dead ends: 1853 [2024-10-14 04:58:11,760 INFO L226 Difference]: Without dead ends: 1769 [2024-10-14 04:58:11,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:11,762 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 1494 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:11,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:11,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-10-14 04:58:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1767. [2024-10-14 04:58:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1765 states have (on average 1.7937677053824364) internal successors, (3166), 1766 states have internal predecessors, (3166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 3166 transitions. [2024-10-14 04:58:11,795 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 3166 transitions. Word has length 55 [2024-10-14 04:58:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:11,795 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 3166 transitions. [2024-10-14 04:58:11,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 3166 transitions. [2024-10-14 04:58:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:11,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:11,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:11,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:58:11,797 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:11,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:11,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1694319433, now seen corresponding path program 1 times [2024-10-14 04:58:11,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:11,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183948246] [2024-10-14 04:58:11,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:11,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:11,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:11,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:11,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183948246] [2024-10-14 04:58:11,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183948246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:11,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:11,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:11,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895119136] [2024-10-14 04:58:11,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:11,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:11,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:11,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:11,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:11,867 INFO L87 Difference]: Start difference. First operand 1767 states and 3166 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:11,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:11,958 INFO L93 Difference]: Finished difference Result 2193 states and 3826 transitions. [2024-10-14 04:58:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:11,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-14 04:58:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:11,965 INFO L225 Difference]: With dead ends: 2193 [2024-10-14 04:58:11,965 INFO L226 Difference]: Without dead ends: 1968 [2024-10-14 04:58:11,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:11,967 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 1490 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:11,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:11,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2024-10-14 04:58:12,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1966. [2024-10-14 04:58:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1964 states have (on average 1.765784114052953) internal successors, (3468), 1965 states have internal predecessors, (3468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 3468 transitions. [2024-10-14 04:58:12,010 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 3468 transitions. Word has length 55 [2024-10-14 04:58:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:12,010 INFO L471 AbstractCegarLoop]: Abstraction has 1966 states and 3468 transitions. [2024-10-14 04:58:12,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 3468 transitions. [2024-10-14 04:58:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:12,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:12,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:12,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:58:12,011 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:12,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:12,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1068663369, now seen corresponding path program 1 times [2024-10-14 04:58:12,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:12,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104486331] [2024-10-14 04:58:12,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:12,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:12,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104486331] [2024-10-14 04:58:12,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104486331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:12,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:12,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:12,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788991835] [2024-10-14 04:58:12,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:12,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:12,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:12,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:12,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:12,067 INFO L87 Difference]: Start difference. First operand 1966 states and 3468 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:12,108 INFO L93 Difference]: Finished difference Result 2766 states and 4690 transitions. [2024-10-14 04:58:12,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:12,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-14 04:58:12,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:12,118 INFO L225 Difference]: With dead ends: 2766 [2024-10-14 04:58:12,119 INFO L226 Difference]: Without dead ends: 2342 [2024-10-14 04:58:12,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:12,120 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 1488 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:12,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1655 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:12,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-10-14 04:58:12,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2340. [2024-10-14 04:58:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2340 states, 2338 states have (on average 1.7211291702309666) internal successors, (4024), 2339 states have internal predecessors, (4024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 4024 transitions. [2024-10-14 04:58:12,172 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 4024 transitions. Word has length 55 [2024-10-14 04:58:12,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:12,172 INFO L471 AbstractCegarLoop]: Abstraction has 2340 states and 4024 transitions. [2024-10-14 04:58:12,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 4024 transitions. [2024-10-14 04:58:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:12,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:12,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:12,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:58:12,173 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:12,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:12,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1957396809, now seen corresponding path program 1 times [2024-10-14 04:58:12,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:12,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272038948] [2024-10-14 04:58:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:12,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:12,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:12,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272038948] [2024-10-14 04:58:12,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272038948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:12,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:12,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:12,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060760357] [2024-10-14 04:58:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:12,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:12,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:12,231 INFO L87 Difference]: Start difference. First operand 2340 states and 4024 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:12,289 INFO L93 Difference]: Finished difference Result 3840 states and 6274 transitions. [2024-10-14 04:58:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:12,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-14 04:58:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:12,300 INFO L225 Difference]: With dead ends: 3840 [2024-10-14 04:58:12,300 INFO L226 Difference]: Without dead ends: 3042 [2024-10-14 04:58:12,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:12,303 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 1486 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:12,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1657 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:12,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2024-10-14 04:58:12,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3040. [2024-10-14 04:58:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 3038 states have (on average 1.6589861751152073) internal successors, (5040), 3039 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 5040 transitions. [2024-10-14 04:58:12,377 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 5040 transitions. Word has length 55 [2024-10-14 04:58:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:12,378 INFO L471 AbstractCegarLoop]: Abstraction has 3040 states and 5040 transitions. [2024-10-14 04:58:12,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 5040 transitions. [2024-10-14 04:58:12,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 04:58:12,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:12,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:12,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:58:12,379 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:12,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1654375497, now seen corresponding path program 1 times [2024-10-14 04:58:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:12,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873076201] [2024-10-14 04:58:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:12,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:12,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:12,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873076201] [2024-10-14 04:58:12,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873076201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:12,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:12,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:12,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37276705] [2024-10-14 04:58:12,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:12,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:12,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:12,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:12,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:12,431 INFO L87 Difference]: Start difference. First operand 3040 states and 5040 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:12,511 INFO L93 Difference]: Finished difference Result 5844 states and 9154 transitions. [2024-10-14 04:58:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:12,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-14 04:58:12,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:12,539 INFO L225 Difference]: With dead ends: 5844 [2024-10-14 04:58:12,539 INFO L226 Difference]: Without dead ends: 4346 [2024-10-14 04:58:12,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:12,545 INFO L432 NwaCegarLoop]: 1589 mSDtfsCounter, 1492 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:12,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2024-10-14 04:58:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 4344. [2024-10-14 04:58:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 4342 states have (on average 1.5845232611699678) internal successors, (6880), 4343 states have internal predecessors, (6880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 6880 transitions. [2024-10-14 04:58:12,662 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 6880 transitions. Word has length 55 [2024-10-14 04:58:12,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:12,662 INFO L471 AbstractCegarLoop]: Abstraction has 4344 states and 6880 transitions. [2024-10-14 04:58:12,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:12,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 6880 transitions. [2024-10-14 04:58:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:12,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:12,667 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:12,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:58:12,667 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:12,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash 285878162, now seen corresponding path program 1 times [2024-10-14 04:58:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:12,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382261853] [2024-10-14 04:58:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:12,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:58:12,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:12,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382261853] [2024-10-14 04:58:12,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382261853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:12,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:12,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:12,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920214590] [2024-10-14 04:58:12,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:12,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:12,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:12,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:12,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:12,824 INFO L87 Difference]: Start difference. First operand 4344 states and 6880 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:13,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:13,245 INFO L93 Difference]: Finished difference Result 18132 states and 26870 transitions. [2024-10-14 04:58:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:13,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:58:13,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:13,280 INFO L225 Difference]: With dead ends: 18132 [2024-10-14 04:58:13,281 INFO L226 Difference]: Without dead ends: 16146 [2024-10-14 04:58:13,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:13,289 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 6293 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6293 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:13,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6293 Valid, 3541 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:13,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16146 states. [2024-10-14 04:58:13,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16146 to 6744. [2024-10-14 04:58:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6744 states, 6742 states have (on average 1.5307030554731533) internal successors, (10320), 6743 states have internal predecessors, (10320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:13,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6744 states to 6744 states and 10320 transitions. [2024-10-14 04:58:13,550 INFO L78 Accepts]: Start accepts. Automaton has 6744 states and 10320 transitions. Word has length 73 [2024-10-14 04:58:13,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:13,550 INFO L471 AbstractCegarLoop]: Abstraction has 6744 states and 10320 transitions. [2024-10-14 04:58:13,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:13,551 INFO L276 IsEmpty]: Start isEmpty. Operand 6744 states and 10320 transitions. [2024-10-14 04:58:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:13,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:13,553 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:13,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:58:13,554 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:13,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:13,554 INFO L85 PathProgramCache]: Analyzing trace with hash 57238930, now seen corresponding path program 1 times [2024-10-14 04:58:13,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:13,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394623848] [2024-10-14 04:58:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:13,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 04:58:13,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:13,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394623848] [2024-10-14 04:58:13,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394623848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:13,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:13,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:13,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614413533] [2024-10-14 04:58:13,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:13,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:13,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:13,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:13,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:13,703 INFO L87 Difference]: Start difference. First operand 6744 states and 10320 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:14,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:14,197 INFO L93 Difference]: Finished difference Result 20932 states and 30902 transitions. [2024-10-14 04:58:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:14,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:58:14,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:14,234 INFO L225 Difference]: With dead ends: 20932 [2024-10-14 04:58:14,234 INFO L226 Difference]: Without dead ends: 18130 [2024-10-14 04:58:14,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:14,244 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 6338 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6338 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:14,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6338 Valid, 3574 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:14,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18130 states. [2024-10-14 04:58:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18130 to 10536. [2024-10-14 04:58:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10536 states, 10534 states have (on average 1.4945889500664515) internal successors, (15744), 10535 states have internal predecessors, (15744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10536 states to 10536 states and 15744 transitions. [2024-10-14 04:58:14,593 INFO L78 Accepts]: Start accepts. Automaton has 10536 states and 15744 transitions. Word has length 73 [2024-10-14 04:58:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:14,594 INFO L471 AbstractCegarLoop]: Abstraction has 10536 states and 15744 transitions. [2024-10-14 04:58:14,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand 10536 states and 15744 transitions. [2024-10-14 04:58:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:14,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:14,596 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:14,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:58:14,597 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:14,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash -568417134, now seen corresponding path program 1 times [2024-10-14 04:58:14,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:14,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40550172] [2024-10-14 04:58:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 04:58:14,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:14,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40550172] [2024-10-14 04:58:14,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40550172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:14,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:14,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:14,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263658130] [2024-10-14 04:58:14,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:14,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:14,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:14,768 INFO L87 Difference]: Start difference. First operand 10536 states and 15744 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:15,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:15,489 INFO L93 Difference]: Finished difference Result 23732 states and 34918 transitions. [2024-10-14 04:58:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:15,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:58:15,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:15,533 INFO L225 Difference]: With dead ends: 23732 [2024-10-14 04:58:15,534 INFO L226 Difference]: Without dead ends: 20930 [2024-10-14 04:58:15,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:15,547 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 6381 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6381 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:15,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6381 Valid, 3555 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:15,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20930 states. [2024-10-14 04:58:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20930 to 13336. [2024-10-14 04:58:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13336 states, 13334 states have (on average 1.4819259037048147) internal successors, (19760), 13335 states have internal predecessors, (19760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:15,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13336 states to 13336 states and 19760 transitions. [2024-10-14 04:58:15,934 INFO L78 Accepts]: Start accepts. Automaton has 13336 states and 19760 transitions. Word has length 73 [2024-10-14 04:58:15,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:15,934 INFO L471 AbstractCegarLoop]: Abstraction has 13336 states and 19760 transitions. [2024-10-14 04:58:15,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand 13336 states and 19760 transitions. [2024-10-14 04:58:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:15,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:15,937 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:15,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:58:15,937 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:15,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash 320316306, now seen corresponding path program 1 times [2024-10-14 04:58:15,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:15,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880020327] [2024-10-14 04:58:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 04:58:16,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:16,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880020327] [2024-10-14 04:58:16,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880020327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:16,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:16,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:16,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761577218] [2024-10-14 04:58:16,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:16,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:16,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:16,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:16,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:16,095 INFO L87 Difference]: Start difference. First operand 13336 states and 19760 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:16,610 INFO L93 Difference]: Finished difference Result 26532 states and 38934 transitions. [2024-10-14 04:58:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:16,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:58:16,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:16,649 INFO L225 Difference]: With dead ends: 26532 [2024-10-14 04:58:16,650 INFO L226 Difference]: Without dead ends: 23730 [2024-10-14 04:58:16,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:16,664 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 6341 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6341 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:16,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6341 Valid, 3577 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23730 states. [2024-10-14 04:58:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23730 to 16136. [2024-10-14 04:58:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16136 states, 16134 states have (on average 1.4736581133011033) internal successors, (23776), 16135 states have internal predecessors, (23776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16136 states to 16136 states and 23776 transitions. [2024-10-14 04:58:17,212 INFO L78 Accepts]: Start accepts. Automaton has 16136 states and 23776 transitions. Word has length 73 [2024-10-14 04:58:17,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:17,212 INFO L471 AbstractCegarLoop]: Abstraction has 16136 states and 23776 transitions. [2024-10-14 04:58:17,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 16136 states and 23776 transitions. [2024-10-14 04:58:17,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 04:58:17,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:17,215 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:17,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 04:58:17,216 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:17,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash 17294994, now seen corresponding path program 1 times [2024-10-14 04:58:17,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:17,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9056811] [2024-10-14 04:58:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:17,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 04:58:17,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:17,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9056811] [2024-10-14 04:58:17,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9056811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:17,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:17,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:58:17,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041855344] [2024-10-14 04:58:17,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:17,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:58:17,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:17,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:58:17,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:58:17,377 INFO L87 Difference]: Start difference. First operand 16136 states and 23776 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:17,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:17,845 INFO L93 Difference]: Finished difference Result 29332 states and 42950 transitions. [2024-10-14 04:58:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:58:17,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 04:58:17,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:17,887 INFO L225 Difference]: With dead ends: 29332 [2024-10-14 04:58:17,888 INFO L226 Difference]: Without dead ends: 26530 [2024-10-14 04:58:17,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:58:17,905 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 6293 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6293 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:17,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6293 Valid, 3665 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:58:17,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26530 states. [2024-10-14 04:58:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26530 to 18936. [2024-10-14 04:58:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18936 states, 18934 states have (on average 1.4678356395901553) internal successors, (27792), 18935 states have internal predecessors, (27792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18936 states to 18936 states and 27792 transitions. [2024-10-14 04:58:18,648 INFO L78 Accepts]: Start accepts. Automaton has 18936 states and 27792 transitions. Word has length 73 [2024-10-14 04:58:18,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:18,649 INFO L471 AbstractCegarLoop]: Abstraction has 18936 states and 27792 transitions. [2024-10-14 04:58:18,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:18,649 INFO L276 IsEmpty]: Start isEmpty. Operand 18936 states and 27792 transitions. [2024-10-14 04:58:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 04:58:18,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:18,652 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] [2024-10-14 04:58:18,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 04:58:18,653 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:18,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:18,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1436271534, now seen corresponding path program 1 times [2024-10-14 04:58:18,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:18,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223612282] [2024-10-14 04:58:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:18,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:18,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223612282] [2024-10-14 04:58:18,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223612282] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:18,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:18,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:18,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143405292] [2024-10-14 04:58:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:18,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:18,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:18,774 INFO L87 Difference]: Start difference. First operand 18936 states and 27792 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:19,259 INFO L93 Difference]: Finished difference Result 36332 states and 52770 transitions. [2024-10-14 04:58:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:19,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-10-14 04:58:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:19,285 INFO L225 Difference]: With dead ends: 36332 [2024-10-14 04:58:19,285 INFO L226 Difference]: Without dead ends: 18938 [2024-10-14 04:58:19,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:19,309 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 45 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:19,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3097 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:19,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18938 states. [2024-10-14 04:58:19,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18938 to 18936. [2024-10-14 04:58:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18936 states, 18934 states have (on average 1.452202387239886) internal successors, (27496), 18935 states have internal predecessors, (27496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18936 states to 18936 states and 27496 transitions. [2024-10-14 04:58:19,892 INFO L78 Accepts]: Start accepts. Automaton has 18936 states and 27496 transitions. Word has length 74 [2024-10-14 04:58:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:19,892 INFO L471 AbstractCegarLoop]: Abstraction has 18936 states and 27496 transitions. [2024-10-14 04:58:19,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 18936 states and 27496 transitions. [2024-10-14 04:58:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-14 04:58:19,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:19,894 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:19,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 04:58:19,894 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:19,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash -702984806, now seen corresponding path program 1 times [2024-10-14 04:58:19,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:19,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703740192] [2024-10-14 04:58:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:19,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:20,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:20,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703740192] [2024-10-14 04:58:20,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703740192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:20,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:20,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:20,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303228643] [2024-10-14 04:58:20,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:20,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:20,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:20,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:20,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,016 INFO L87 Difference]: Start difference. First operand 18936 states and 27496 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:20,202 INFO L93 Difference]: Finished difference Result 25406 states and 36773 transitions. [2024-10-14 04:58:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:20,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-10-14 04:58:20,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:20,216 INFO L225 Difference]: With dead ends: 25406 [2024-10-14 04:58:20,216 INFO L226 Difference]: Without dead ends: 8012 [2024-10-14 04:58:20,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,235 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 39 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:20,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3094 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2024-10-14 04:58:20,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 8005. [2024-10-14 04:58:20,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8005 states, 8003 states have (on average 1.4970636011495688) internal successors, (11981), 8004 states have internal predecessors, (11981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8005 states to 8005 states and 11981 transitions. [2024-10-14 04:58:20,581 INFO L78 Accepts]: Start accepts. Automaton has 8005 states and 11981 transitions. Word has length 75 [2024-10-14 04:58:20,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:20,581 INFO L471 AbstractCegarLoop]: Abstraction has 8005 states and 11981 transitions. [2024-10-14 04:58:20,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 8005 states and 11981 transitions. [2024-10-14 04:58:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 04:58:20,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:20,583 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] [2024-10-14 04:58:20,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 04:58:20,587 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:20,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:20,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1790502652, now seen corresponding path program 1 times [2024-10-14 04:58:20,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:20,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20625563] [2024-10-14 04:58:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:20,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:20,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:20,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20625563] [2024-10-14 04:58:20,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20625563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:20,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:20,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:20,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532711320] [2024-10-14 04:58:20,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:20,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:20,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:20,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,703 INFO L87 Difference]: Start difference. First operand 8005 states and 11981 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:20,801 INFO L93 Difference]: Finished difference Result 11233 states and 16559 transitions. [2024-10-14 04:58:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:20,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 04:58:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:20,808 INFO L225 Difference]: With dead ends: 11233 [2024-10-14 04:58:20,809 INFO L226 Difference]: Without dead ends: 4783 [2024-10-14 04:58:20,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:20,816 INFO L432 NwaCegarLoop]: 1563 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:20,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3073 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:20,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2024-10-14 04:58:20,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4781. [2024-10-14 04:58:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4781 states, 4779 states have (on average 1.5386064030131827) internal successors, (7353), 4780 states have internal predecessors, (7353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 7353 transitions. [2024-10-14 04:58:20,918 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 7353 transitions. Word has length 76 [2024-10-14 04:58:20,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:20,918 INFO L471 AbstractCegarLoop]: Abstraction has 4781 states and 7353 transitions. [2024-10-14 04:58:20,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:20,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 7353 transitions. [2024-10-14 04:58:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 04:58:20,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:20,920 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] [2024-10-14 04:58:20,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 04:58:20,920 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:20,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:20,921 INFO L85 PathProgramCache]: Analyzing trace with hash -626519094, now seen corresponding path program 1 times [2024-10-14 04:58:20,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:20,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470970200] [2024-10-14 04:58:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:20,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:21,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:21,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470970200] [2024-10-14 04:58:21,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470970200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:21,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:21,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:21,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67855726] [2024-10-14 04:58:21,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:21,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:21,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:21,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:21,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:21,020 INFO L87 Difference]: Start difference. First operand 4781 states and 7353 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:21,079 INFO L93 Difference]: Finished difference Result 6397 states and 9617 transitions. [2024-10-14 04:58:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:21,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 04:58:21,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:21,085 INFO L225 Difference]: With dead ends: 6397 [2024-10-14 04:58:21,086 INFO L226 Difference]: Without dead ends: 3171 [2024-10-14 04:58:21,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:21,092 INFO L432 NwaCegarLoop]: 1556 mSDtfsCounter, 38 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:21,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3058 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:21,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2024-10-14 04:58:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3169. [2024-10-14 04:58:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 3167 states have (on average 1.5993053362803915) internal successors, (5065), 3168 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 5065 transitions. [2024-10-14 04:58:21,154 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 5065 transitions. Word has length 78 [2024-10-14 04:58:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:21,154 INFO L471 AbstractCegarLoop]: Abstraction has 3169 states and 5065 transitions. [2024-10-14 04:58:21,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 5065 transitions. [2024-10-14 04:58:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 04:58:21,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:21,156 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] [2024-10-14 04:58:21,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 04:58:21,156 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:21,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:21,157 INFO L85 PathProgramCache]: Analyzing trace with hash 439495192, now seen corresponding path program 1 times [2024-10-14 04:58:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:21,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841763680] [2024-10-14 04:58:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:21,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:21,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841763680] [2024-10-14 04:58:21,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841763680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:58:21,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:58:21,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:58:21,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382944348] [2024-10-14 04:58:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:58:21,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:58:21,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:58:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:21,250 INFO L87 Difference]: Start difference. First operand 3169 states and 5065 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:21,294 INFO L93 Difference]: Finished difference Result 3979 states and 6185 transitions. [2024-10-14 04:58:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:58:21,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-14 04:58:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:21,299 INFO L225 Difference]: With dead ends: 3979 [2024-10-14 04:58:21,299 INFO L226 Difference]: Without dead ends: 2365 [2024-10-14 04:58:21,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:58:21,304 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 35 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:21,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3043 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:58:21,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2024-10-14 04:58:21,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2363. [2024-10-14 04:58:21,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2361 states have (on average 1.6662431173231682) internal successors, (3934), 2362 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3934 transitions. [2024-10-14 04:58:21,337 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3934 transitions. Word has length 80 [2024-10-14 04:58:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:21,337 INFO L471 AbstractCegarLoop]: Abstraction has 2363 states and 3934 transitions. [2024-10-14 04:58:21,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3934 transitions. [2024-10-14 04:58:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 04:58:21,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:21,339 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] [2024-10-14 04:58:21,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 04:58:21,339 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:21,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:21,340 INFO L85 PathProgramCache]: Analyzing trace with hash 397937126, now seen corresponding path program 1 times [2024-10-14 04:58:21,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:21,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633819679] [2024-10-14 04:58:21,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:21,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:21,493 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 04:58:21,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:21,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633819679] [2024-10-14 04:58:21,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633819679] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:21,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278491061] [2024-10-14 04:58:21,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:21,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:21,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:21,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:21,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:58:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:21,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 04:58:21,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:22,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:23,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278491061] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:23,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:23,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 20 [2024-10-14 04:58:23,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485148563] [2024-10-14 04:58:23,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:23,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 04:58:23,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:23,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 04:58:23,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-10-14 04:58:23,305 INFO L87 Difference]: Start difference. First operand 2363 states and 3934 transitions. Second operand has 20 states, 20 states have (on average 10.75) internal successors, (215), 20 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:24,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:24,253 INFO L93 Difference]: Finished difference Result 4716 states and 7044 transitions. [2024-10-14 04:58:24,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 04:58:24,253 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 10.75) internal successors, (215), 20 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 04:58:24,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:24,260 INFO L225 Difference]: With dead ends: 4716 [2024-10-14 04:58:24,260 INFO L226 Difference]: Without dead ends: 3908 [2024-10-14 04:58:24,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 04:58:24,263 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 13935 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13935 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:24,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13935 Valid, 4769 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 04:58:24,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2024-10-14 04:58:24,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3778. [2024-10-14 04:58:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 1.5161546610169492) internal successors, (5725), 3777 states have internal predecessors, (5725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5725 transitions. [2024-10-14 04:58:24,352 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5725 transitions. Word has length 82 [2024-10-14 04:58:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:24,353 INFO L471 AbstractCegarLoop]: Abstraction has 3778 states and 5725 transitions. [2024-10-14 04:58:24,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.75) internal successors, (215), 20 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5725 transitions. [2024-10-14 04:58:24,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 04:58:24,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:24,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:24,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 04:58:24,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-14 04:58:24,556 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:24,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:24,556 INFO L85 PathProgramCache]: Analyzing trace with hash 577648048, now seen corresponding path program 1 times [2024-10-14 04:58:24,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:24,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962745056] [2024-10-14 04:58:24,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:24,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:25,045 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:25,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:25,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962745056] [2024-10-14 04:58:25,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962745056] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:25,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398952463] [2024-10-14 04:58:25,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:25,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:25,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:25,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:25,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 04:58:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:25,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 04:58:25,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:26,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:27,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398952463] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:27,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:27,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 17] total 38 [2024-10-14 04:58:27,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339807650] [2024-10-14 04:58:27,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:27,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-10-14 04:58:27,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:27,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-10-14 04:58:27,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1249, Unknown=0, NotChecked=0, Total=1406 [2024-10-14 04:58:27,554 INFO L87 Difference]: Start difference. First operand 3778 states and 5725 transitions. Second operand has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:34,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:34,808 INFO L93 Difference]: Finished difference Result 32736 states and 44413 transitions. [2024-10-14 04:58:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-10-14 04:58:34,809 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 0 states have call successors, (0), 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 83 [2024-10-14 04:58:34,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:34,841 INFO L225 Difference]: With dead ends: 32736 [2024-10-14 04:58:34,841 INFO L226 Difference]: Without dead ends: 30533 [2024-10-14 04:58:34,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6577 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=3080, Invalid=16380, Unknown=0, NotChecked=0, Total=19460 [2024-10-14 04:58:34,853 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 19535 mSDsluCounter, 15701 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19535 SdHoareTripleChecker+Valid, 17217 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:34,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19535 Valid, 17217 Invalid, 1789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:58:34,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30533 states. [2024-10-14 04:58:35,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30533 to 9452. [2024-10-14 04:58:35,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9452 states, 9450 states have (on average 1.3718518518518519) internal successors, (12964), 9451 states have internal predecessors, (12964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9452 states to 9452 states and 12964 transitions. [2024-10-14 04:58:35,183 INFO L78 Accepts]: Start accepts. Automaton has 9452 states and 12964 transitions. Word has length 83 [2024-10-14 04:58:35,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:35,184 INFO L471 AbstractCegarLoop]: Abstraction has 9452 states and 12964 transitions. [2024-10-14 04:58:35,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 9452 states and 12964 transitions. [2024-10-14 04:58:35,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 04:58:35,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:35,185 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:35,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 04:58:35,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-14 04:58:35,386 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:35,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:35,387 INFO L85 PathProgramCache]: Analyzing trace with hash -286841112, now seen corresponding path program 1 times [2024-10-14 04:58:35,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:35,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771948447] [2024-10-14 04:58:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:35,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:35,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:35,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771948447] [2024-10-14 04:58:35,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771948447] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:35,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619366547] [2024-10-14 04:58:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:35,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:35,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:35,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:35,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 04:58:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:35,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 04:58:35,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:36,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:37,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619366547] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:37,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:37,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-10-14 04:58:37,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822681692] [2024-10-14 04:58:37,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:37,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 04:58:37,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:37,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 04:58:37,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2024-10-14 04:58:37,840 INFO L87 Difference]: Start difference. First operand 9452 states and 12964 transitions. Second operand has 32 states, 32 states have (on average 7.34375) internal successors, (235), 32 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:41,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:41,158 INFO L93 Difference]: Finished difference Result 33091 states and 44259 transitions. [2024-10-14 04:58:41,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-10-14 04:58:41,158 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.34375) internal successors, (235), 32 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 04:58:41,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:41,185 INFO L225 Difference]: With dead ends: 33091 [2024-10-14 04:58:41,185 INFO L226 Difference]: Without dead ends: 25764 [2024-10-14 04:58:41,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=939, Invalid=4173, Unknown=0, NotChecked=0, Total=5112 [2024-10-14 04:58:41,198 INFO L432 NwaCegarLoop]: 1496 mSDtfsCounter, 16075 mSDsluCounter, 12471 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16075 SdHoareTripleChecker+Valid, 13967 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:41,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16075 Valid, 13967 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 04:58:41,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25764 states. [2024-10-14 04:58:41,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25764 to 11793. [2024-10-14 04:58:41,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11793 states, 11791 states have (on average 1.3596811127130863) internal successors, (16032), 11792 states have internal predecessors, (16032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11793 states to 11793 states and 16032 transitions. [2024-10-14 04:58:41,596 INFO L78 Accepts]: Start accepts. Automaton has 11793 states and 16032 transitions. Word has length 84 [2024-10-14 04:58:41,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:41,597 INFO L471 AbstractCegarLoop]: Abstraction has 11793 states and 16032 transitions. [2024-10-14 04:58:41,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.34375) internal successors, (235), 32 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:41,597 INFO L276 IsEmpty]: Start isEmpty. Operand 11793 states and 16032 transitions. [2024-10-14 04:58:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 04:58:41,599 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:41,599 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:41,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 04:58:41,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:41,800 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:41,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:41,800 INFO L85 PathProgramCache]: Analyzing trace with hash 111551184, now seen corresponding path program 1 times [2024-10-14 04:58:41,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:41,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553433521] [2024-10-14 04:58:41,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:41,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:42,136 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:42,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:42,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553433521] [2024-10-14 04:58:42,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553433521] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:42,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361010059] [2024-10-14 04:58:42,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:42,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:42,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:42,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:42,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 04:58:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:42,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 04:58:42,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:42,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:43,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361010059] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:43,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:43,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-10-14 04:58:43,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953222495] [2024-10-14 04:58:43,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:43,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 04:58:43,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:43,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 04:58:43,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-10-14 04:58:43,221 INFO L87 Difference]: Start difference. First operand 11793 states and 16032 transitions. Second operand has 22 states, 22 states have (on average 8.727272727272727) internal successors, (192), 21 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:44,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:44,198 INFO L93 Difference]: Finished difference Result 32398 states and 42900 transitions. [2024-10-14 04:58:44,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 04:58:44,199 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.727272727272727) internal successors, (192), 21 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 04:58:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:44,223 INFO L225 Difference]: With dead ends: 32398 [2024-10-14 04:58:44,224 INFO L226 Difference]: Without dead ends: 22823 [2024-10-14 04:58:44,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=803, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 04:58:44,235 INFO L432 NwaCegarLoop]: 1524 mSDtfsCounter, 12084 mSDsluCounter, 4825 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12084 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:44,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12084 Valid, 6349 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:58:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22823 states. [2024-10-14 04:58:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22823 to 22547. [2024-10-14 04:58:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22547 states, 22545 states have (on average 1.3131958305611) internal successors, (29606), 22546 states have internal predecessors, (29606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 29606 transitions. [2024-10-14 04:58:44,938 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 29606 transitions. Word has length 85 [2024-10-14 04:58:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:44,939 INFO L471 AbstractCegarLoop]: Abstraction has 22547 states and 29606 transitions. [2024-10-14 04:58:44,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.727272727272727) internal successors, (192), 21 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 29606 transitions. [2024-10-14 04:58:44,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 04:58:44,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:44,940 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:44,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 04:58:45,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-14 04:58:45,141 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:45,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:45,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1688504568, now seen corresponding path program 1 times [2024-10-14 04:58:45,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:45,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548668431] [2024-10-14 04:58:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:45,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:46,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548668431] [2024-10-14 04:58:46,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548668431] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586045901] [2024-10-14 04:58:46,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:46,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:46,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:46,038 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:46,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 04:58:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:46,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-14 04:58:46,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:47,994 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:47,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:50,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586045901] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:50,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:50,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 17] total 40 [2024-10-14 04:58:50,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657011456] [2024-10-14 04:58:50,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:50,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-14 04:58:50,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:50,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-14 04:58:50,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1322, Unknown=0, NotChecked=0, Total=1560 [2024-10-14 04:58:50,137 INFO L87 Difference]: Start difference. First operand 22547 states and 29606 transitions. Second operand has 40 states, 40 states have (on average 5.975) internal successors, (239), 40 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:55,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:58:55,584 INFO L93 Difference]: Finished difference Result 47949 states and 61522 transitions. [2024-10-14 04:58:55,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-14 04:58:55,585 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.975) internal successors, (239), 40 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 04:58:55,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:58:55,630 INFO L225 Difference]: With dead ends: 47949 [2024-10-14 04:58:55,631 INFO L226 Difference]: Without dead ends: 40621 [2024-10-14 04:58:55,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1774 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1605, Invalid=4875, Unknown=0, NotChecked=0, Total=6480 [2024-10-14 04:58:55,643 INFO L432 NwaCegarLoop]: 1547 mSDtfsCounter, 16222 mSDsluCounter, 18386 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16222 SdHoareTripleChecker+Valid, 19933 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:58:55,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16222 Valid, 19933 Invalid, 1433 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 04:58:55,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40621 states. [2024-10-14 04:58:56,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40621 to 34599. [2024-10-14 04:58:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34599 states, 34597 states have (on average 1.2903430933317919) internal successors, (44642), 34598 states have internal predecessors, (44642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34599 states to 34599 states and 44642 transitions. [2024-10-14 04:58:57,015 INFO L78 Accepts]: Start accepts. Automaton has 34599 states and 44642 transitions. Word has length 86 [2024-10-14 04:58:57,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:58:57,015 INFO L471 AbstractCegarLoop]: Abstraction has 34599 states and 44642 transitions. [2024-10-14 04:58:57,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.975) internal successors, (239), 40 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:58:57,015 INFO L276 IsEmpty]: Start isEmpty. Operand 34599 states and 44642 transitions. [2024-10-14 04:58:57,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 04:58:57,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:58:57,017 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:58:57,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 04:58:57,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-14 04:58:57,218 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:58:57,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:58:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash 698317048, now seen corresponding path program 1 times [2024-10-14 04:58:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:58:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772523590] [2024-10-14 04:58:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:58:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:57,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:58:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772523590] [2024-10-14 04:58:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772523590] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:58:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914144215] [2024-10-14 04:58:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:58:57,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:58:57,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:58:57,881 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:58:57,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 04:58:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:58:58,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 04:58:58,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:58:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:58,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:58:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:58:59,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914144215] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:58:59,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:58:59,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 34 [2024-10-14 04:58:59,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224248293] [2024-10-14 04:58:59,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:58:59,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-14 04:58:59,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:58:59,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-14 04:58:59,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1020, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 04:58:59,382 INFO L87 Difference]: Start difference. First operand 34599 states and 44642 transitions. Second operand has 34 states, 34 states have (on average 6.294117647058823) internal successors, (214), 34 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:03,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:59:03,913 INFO L93 Difference]: Finished difference Result 51149 states and 65861 transitions. [2024-10-14 04:59:03,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-14 04:59:03,914 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.294117647058823) internal successors, (214), 34 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 04:59:03,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:59:03,951 INFO L225 Difference]: With dead ends: 51149 [2024-10-14 04:59:03,951 INFO L226 Difference]: Without dead ends: 31597 [2024-10-14 04:59:03,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1384, Invalid=4468, Unknown=0, NotChecked=0, Total=5852 [2024-10-14 04:59:03,969 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 15250 mSDsluCounter, 24478 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15250 SdHoareTripleChecker+Valid, 26008 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:59:03,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15250 Valid, 26008 Invalid, 1973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 04:59:03,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31597 states. [2024-10-14 04:59:05,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31597 to 26041. [2024-10-14 04:59:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26041 states, 26039 states have (on average 1.302891816121971) internal successors, (33926), 26040 states have internal predecessors, (33926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:05,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26041 states to 26041 states and 33926 transitions. [2024-10-14 04:59:05,100 INFO L78 Accepts]: Start accepts. Automaton has 26041 states and 33926 transitions. Word has length 86 [2024-10-14 04:59:05,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:59:05,100 INFO L471 AbstractCegarLoop]: Abstraction has 26041 states and 33926 transitions. [2024-10-14 04:59:05,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.294117647058823) internal successors, (214), 34 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 26041 states and 33926 transitions. [2024-10-14 04:59:05,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 04:59:05,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:05,102 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 04:59:05,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 04:59:05,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-14 04:59:05,303 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:05,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 267825159, now seen corresponding path program 1 times [2024-10-14 04:59:05,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:05,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715709136] [2024-10-14 04:59:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:59:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:59:05,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:59:05,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715709136] [2024-10-14 04:59:05,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715709136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:59:05,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:59:05,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:59:05,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621257233] [2024-10-14 04:59:05,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:59:05,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:59:05,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:59:05,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:59:05,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:59:05,504 INFO L87 Difference]: Start difference. First operand 26041 states and 33926 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:11,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:59:11,278 INFO L93 Difference]: Finished difference Result 29798 states and 40816 transitions. [2024-10-14 04:59:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:59:11,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-10-14 04:59:11,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:59:11,304 INFO L225 Difference]: With dead ends: 29798 [2024-10-14 04:59:11,305 INFO L226 Difference]: Without dead ends: 28294 [2024-10-14 04:59:11,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:59:11,309 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 2362 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4808 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 5946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 4808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:59:11,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 812 Invalid, 5946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 4808 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-10-14 04:59:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28294 states. [2024-10-14 04:59:12,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28294 to 28294. [2024-10-14 04:59:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28294 states, 28292 states have (on average 1.290647532871483) internal successors, (36515), 28293 states have internal predecessors, (36515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28294 states to 28294 states and 36515 transitions. [2024-10-14 04:59:12,355 INFO L78 Accepts]: Start accepts. Automaton has 28294 states and 36515 transitions. Word has length 98 [2024-10-14 04:59:12,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:59:12,356 INFO L471 AbstractCegarLoop]: Abstraction has 28294 states and 36515 transitions. [2024-10-14 04:59:12,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:59:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 28294 states and 36515 transitions. [2024-10-14 04:59:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 04:59:12,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:59:12,358 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 04:59:12,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 04:59:12,358 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:59:12,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:59:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1732691092, now seen corresponding path program 1 times [2024-10-14 04:59:12,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:59:12,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718232438] [2024-10-14 04:59:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:59:12,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:59:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat