./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70ca1bfdbf6f4157e1339cfca82c678bf19a6299fc4637582e6399e1c79061a2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:08:32,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:08:32,161 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:08:32,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:08:32,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:08:32,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:08:32,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:08:32,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:08:32,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:08:32,204 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:08:32,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:08:32,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:08:32,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:08:32,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:08:32,208 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:08:32,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:08:32,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:08:32,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:08:32,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:08:32,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:08:32,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:08:32,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:08:32,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:08:32,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:08:32,211 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:08:32,211 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:08:32,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:08:32,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:08:32,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:08:32,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:08:32,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:08:32,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:08:32,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:08:32,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:08:32,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:08:32,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:08:32,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:08:32,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:08:32,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:08:32,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:08:32,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:08:32,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:08:32,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ca1bfdbf6f4157e1339cfca82c678bf19a6299fc4637582e6399e1c79061a2 [2024-11-18 16:08:32,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:08:32,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:08:32,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:08:32,540 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:08:32,543 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:08:32,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-18 16:08:34,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:08:34,499 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:08:34,501 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-18 16:08:34,541 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f564273e/dbe91f3fc6a04a3981c4e92d2a57ec00/FLAGed700db1d [2024-11-18 16:08:34,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f564273e/dbe91f3fc6a04a3981c4e92d2a57ec00 [2024-11-18 16:08:34,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:08:34,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:08:34,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:08:34,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:08:34,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:08:34,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:08:34" (1/1) ... [2024-11-18 16:08:34,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22af37f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:34, skipping insertion in model container [2024-11-18 16:08:34,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:08:34" (1/1) ... [2024-11-18 16:08:34,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:08:35,082 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[15510,15523] [2024-11-18 16:08:35,115 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[17385,17398] [2024-11-18 16:08:35,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:08:35,812 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:08:35,854 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[15510,15523] [2024-11-18 16:08:35,858 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[17385,17398] [2024-11-18 16:08:36,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:08:36,262 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:08:36,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36 WrapperNode [2024-11-18 16:08:36,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:08:36,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:08:36,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:08:36,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:08:36,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:36,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:36,677 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-18 16:08:36,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:08:36,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:08:36,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:08:36,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:08:36,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:36,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:36,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,023 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 16:08:37,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:08:37,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:08:37,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:08:37,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:08:37,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (1/1) ... [2024-11-18 16:08:37,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:08:37,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:08:37,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 16:08:37,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 16:08:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:08:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:08:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:08:37,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:08:37,792 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:08:37,795 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:08:42,299 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-18 16:08:42,299 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:08:42,342 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:08:42,342 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:08:42,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:08:42 BoogieIcfgContainer [2024-11-18 16:08:42,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:08:42,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:08:42,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:08:42,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:08:42,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:08:34" (1/3) ... [2024-11-18 16:08:42,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5590b627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:08:42, skipping insertion in model container [2024-11-18 16:08:42,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:08:36" (2/3) ... [2024-11-18 16:08:42,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5590b627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:08:42, skipping insertion in model container [2024-11-18 16:08:42,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:08:42" (3/3) ... [2024-11-18 16:08:42,352 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-18 16:08:42,367 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:08:42,367 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:08:42,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:08:42,464 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;@4a613b08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:08:42,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:08:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-18 16:08:42,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:42,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:42,481 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:42,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:42,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1485177547, now seen corresponding path program 1 times [2024-11-18 16:08:42,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:42,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029555568] [2024-11-18 16:08:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:42,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:42,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:42,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029555568] [2024-11-18 16:08:42,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029555568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:42,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:42,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:08:42,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940153288] [2024-11-18 16:08:42,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:42,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:42,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:42,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:42,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:42,855 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 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 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:46,205 INFO L93 Difference]: Finished difference Result 2539 states and 4888 transitions. [2024-11-18 16:08:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:46,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-18 16:08:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:46,241 INFO L225 Difference]: With dead ends: 2539 [2024-11-18 16:08:46,242 INFO L226 Difference]: Without dead ends: 1601 [2024-11-18 16:08:46,250 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 [2024-11-18 16:08:46,257 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 985 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:46,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 649 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-18 16:08:46,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-18 16:08:46,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-18 16:08:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.6460287679799874) internal successors, (2632), 1600 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2632 transitions. [2024-11-18 16:08:46,387 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2632 transitions. Word has length 16 [2024-11-18 16:08:46,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:46,388 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2632 transitions. [2024-11-18 16:08:46,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:46,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2632 transitions. [2024-11-18 16:08:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-18 16:08:46,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:46,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:46,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:08:46,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:46,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:46,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1448421831, now seen corresponding path program 1 times [2024-11-18 16:08:46,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:46,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671240453] [2024-11-18 16:08:46,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:46,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:46,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:46,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:46,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671240453] [2024-11-18 16:08:46,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671240453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:46,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:46,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:08:46,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838224916] [2024-11-18 16:08:46,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:46,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:08:46,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:08:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:08:46,648 INFO L87 Difference]: Start difference. First operand 1601 states and 2632 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:46,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:46,737 INFO L93 Difference]: Finished difference Result 1655 states and 2716 transitions. [2024-11-18 16:08:46,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:08:46,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-18 16:08:46,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:46,745 INFO L225 Difference]: With dead ends: 1655 [2024-11-18 16:08:46,745 INFO L226 Difference]: Without dead ends: 1601 [2024-11-18 16:08:46,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:08:46,747 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:46,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:08:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-18 16:08:46,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-18 16:08:46,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.6210131332082551) internal successors, (2592), 1600 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2592 transitions. [2024-11-18 16:08:46,780 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2592 transitions. Word has length 26 [2024-11-18 16:08:46,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:46,780 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2592 transitions. [2024-11-18 16:08:46,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:46,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2592 transitions. [2024-11-18 16:08:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:08:46,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:46,783 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:46,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:08:46,783 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:46,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:46,784 INFO L85 PathProgramCache]: Analyzing trace with hash -295358701, now seen corresponding path program 1 times [2024-11-18 16:08:46,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:46,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849881885] [2024-11-18 16:08:46,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:46,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:46,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:46,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:46,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849881885] [2024-11-18 16:08:46,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849881885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:46,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:46,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:08:46,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576530257] [2024-11-18 16:08:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:46,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:08:46,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:08:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:08:46,996 INFO L87 Difference]: Start difference. First operand 1601 states and 2592 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:47,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:47,296 INFO L93 Difference]: Finished difference Result 2201 states and 3552 transitions. [2024-11-18 16:08:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 16:08:47,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 16:08:47,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:47,304 INFO L225 Difference]: With dead ends: 2201 [2024-11-18 16:08:47,304 INFO L226 Difference]: Without dead ends: 2151 [2024-11-18 16:08:47,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-18 16:08:47,308 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 9855 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9855 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:47,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9855 Valid, 3085 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:08:47,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2024-11-18 16:08:47,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1649. [2024-11-18 16:08:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1647 states have (on average 1.620522161505768) internal successors, (2669), 1648 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:47,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2669 transitions. [2024-11-18 16:08:47,422 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2669 transitions. Word has length 65 [2024-11-18 16:08:47,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:47,423 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2669 transitions. [2024-11-18 16:08:47,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2669 transitions. [2024-11-18 16:08:47,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:08:47,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:47,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:47,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:08:47,425 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:47,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:47,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1787564125, now seen corresponding path program 1 times [2024-11-18 16:08:47,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:47,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826343267] [2024-11-18 16:08:47,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:47,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:47,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:47,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826343267] [2024-11-18 16:08:47,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826343267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:47,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:47,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:47,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575885346] [2024-11-18 16:08:47,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:47,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:47,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:47,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:47,530 INFO L87 Difference]: Start difference. First operand 1649 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:47,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:47,575 INFO L93 Difference]: Finished difference Result 1834 states and 2964 transitions. [2024-11-18 16:08:47,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:47,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-18 16:08:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:47,582 INFO L225 Difference]: With dead ends: 1834 [2024-11-18 16:08:47,582 INFO L226 Difference]: Without dead ends: 1736 [2024-11-18 16:08:47,585 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 [2024-11-18 16:08:47,586 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:47,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:47,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-18 16:08:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1732. [2024-11-18 16:08:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6179190751445087) internal successors, (2799), 1731 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2799 transitions. [2024-11-18 16:08:47,625 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2799 transitions. Word has length 67 [2024-11-18 16:08:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:47,628 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2799 transitions. [2024-11-18 16:08:47,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:47,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2799 transitions. [2024-11-18 16:08:47,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:08:47,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:47,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:47,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:08:47,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:47,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:47,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1721070613, now seen corresponding path program 1 times [2024-11-18 16:08:47,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:47,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516444224] [2024-11-18 16:08:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:47,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:48,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:48,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:48,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516444224] [2024-11-18 16:08:48,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516444224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:48,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:48,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:08:48,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413509755] [2024-11-18 16:08:48,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:48,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:08:48,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:48,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:08:48,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:08:48,063 INFO L87 Difference]: Start difference. First operand 1732 states and 2799 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:48,335 INFO L93 Difference]: Finished difference Result 1915 states and 3087 transitions. [2024-11-18 16:08:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:08:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-18 16:08:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:48,342 INFO L225 Difference]: With dead ends: 1915 [2024-11-18 16:08:48,343 INFO L226 Difference]: Without dead ends: 1734 [2024-11-18 16:08:48,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-18 16:08:48,345 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 9010 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9010 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:48,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9010 Valid, 1940 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:08:48,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-18 16:08:48,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1732. [2024-11-18 16:08:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.6167630057803468) internal successors, (2797), 1731 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2797 transitions. [2024-11-18 16:08:48,381 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2797 transitions. Word has length 67 [2024-11-18 16:08:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:48,382 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2797 transitions. [2024-11-18 16:08:48,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2797 transitions. [2024-11-18 16:08:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 16:08:48,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:48,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:48,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:08:48,384 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:48,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:48,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2066662853, now seen corresponding path program 1 times [2024-11-18 16:08:48,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:48,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052281800] [2024-11-18 16:08:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:48,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:48,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:48,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:48,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052281800] [2024-11-18 16:08:48,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052281800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:48,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:48,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:08:48,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924887452] [2024-11-18 16:08:48,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:48,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:08:48,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:48,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:08:48,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:08:48,692 INFO L87 Difference]: Start difference. First operand 1732 states and 2797 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:48,737 INFO L93 Difference]: Finished difference Result 1740 states and 2806 transitions. [2024-11-18 16:08:48,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:08:48,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 16:08:48,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:48,745 INFO L225 Difference]: With dead ends: 1740 [2024-11-18 16:08:48,746 INFO L226 Difference]: Without dead ends: 1738 [2024-11-18 16:08:48,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:08:48,747 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:48,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:48,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-18 16:08:48,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-11-18 16:08:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1736 states have (on average 1.6140552995391706) internal successors, (2802), 1737 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2802 transitions. [2024-11-18 16:08:48,784 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2802 transitions. Word has length 68 [2024-11-18 16:08:48,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:48,785 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2802 transitions. [2024-11-18 16:08:48,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2802 transitions. [2024-11-18 16:08:48,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:08:48,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:48,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:48,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:08:48,786 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:48,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:48,787 INFO L85 PathProgramCache]: Analyzing trace with hash 279342091, now seen corresponding path program 1 times [2024-11-18 16:08:48,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:48,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564199972] [2024-11-18 16:08:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:48,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:48,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:48,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564199972] [2024-11-18 16:08:48,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564199972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:48,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:48,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:48,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204290056] [2024-11-18 16:08:48,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:48,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:48,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:48,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:48,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:48,872 INFO L87 Difference]: Start difference. First operand 1738 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:48,909 INFO L93 Difference]: Finished difference Result 2096 states and 3354 transitions. [2024-11-18 16:08:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:48,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:08:48,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:48,916 INFO L225 Difference]: With dead ends: 2096 [2024-11-18 16:08:48,916 INFO L226 Difference]: Without dead ends: 1909 [2024-11-18 16:08:48,917 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 [2024-11-18 16:08:48,920 INFO L432 NwaCegarLoop]: 1612 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:48,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1701 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:48,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-11-18 16:08:48,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1907. [2024-11-18 16:08:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.6057742782152231) internal successors, (3059), 1906 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3059 transitions. [2024-11-18 16:08:48,966 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3059 transitions. Word has length 69 [2024-11-18 16:08:48,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:48,967 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 3059 transitions. [2024-11-18 16:08:48,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:48,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3059 transitions. [2024-11-18 16:08:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:08:49,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:49,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:49,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:08:49,000 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:49,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1517604107, now seen corresponding path program 1 times [2024-11-18 16:08:49,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:49,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459145053] [2024-11-18 16:08:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:49,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:49,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:49,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459145053] [2024-11-18 16:08:49,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459145053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:49,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:49,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172977335] [2024-11-18 16:08:49,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:49,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:49,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:49,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:49,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:49,073 INFO L87 Difference]: Start difference. First operand 1907 states and 3059 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:49,113 INFO L93 Difference]: Finished difference Result 2587 states and 4097 transitions. [2024-11-18 16:08:49,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:49,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:08:49,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:49,124 INFO L225 Difference]: With dead ends: 2587 [2024-11-18 16:08:49,124 INFO L226 Difference]: Without dead ends: 2231 [2024-11-18 16:08:49,125 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 [2024-11-18 16:08:49,127 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:49,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1703 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:49,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-18 16:08:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2024-11-18 16:08:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2227 states have (on average 1.5900314324202964) internal successors, (3541), 2228 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3541 transitions. [2024-11-18 16:08:49,178 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3541 transitions. Word has length 69 [2024-11-18 16:08:49,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:49,178 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 3541 transitions. [2024-11-18 16:08:49,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3541 transitions. [2024-11-18 16:08:49,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:08:49,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:49,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:49,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:08:49,180 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:49,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash -697864693, now seen corresponding path program 1 times [2024-11-18 16:08:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:49,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999995714] [2024-11-18 16:08:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:49,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:49,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:49,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999995714] [2024-11-18 16:08:49,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999995714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:49,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:49,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:49,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424533441] [2024-11-18 16:08:49,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:49,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:49,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:49,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:49,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:49,247 INFO L87 Difference]: Start difference. First operand 2229 states and 3541 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:49,297 INFO L93 Difference]: Finished difference Result 3521 states and 5487 transitions. [2024-11-18 16:08:49,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:49,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:08:49,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:49,308 INFO L225 Difference]: With dead ends: 3521 [2024-11-18 16:08:49,309 INFO L226 Difference]: Without dead ends: 2843 [2024-11-18 16:08:49,310 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 [2024-11-18 16:08:49,311 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:49,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-18 16:08:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2841. [2024-11-18 16:08:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 1.5642831983092638) internal successors, (4441), 2840 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4441 transitions. [2024-11-18 16:08:49,383 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4441 transitions. Word has length 69 [2024-11-18 16:08:49,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:49,384 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 4441 transitions. [2024-11-18 16:08:49,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4441 transitions. [2024-11-18 16:08:49,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:08:49,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:49,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:49,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:08:49,387 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:49,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:49,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1083068171, now seen corresponding path program 1 times [2024-11-18 16:08:49,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:49,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236231473] [2024-11-18 16:08:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:49,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:49,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:49,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236231473] [2024-11-18 16:08:49,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236231473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:49,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:49,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:49,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831873583] [2024-11-18 16:08:49,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:49,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:49,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:49,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:49,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:49,458 INFO L87 Difference]: Start difference. First operand 2841 states and 4441 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:49,526 INFO L93 Difference]: Finished difference Result 5293 states and 8075 transitions. [2024-11-18 16:08:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:49,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:08:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:49,541 INFO L225 Difference]: With dead ends: 5293 [2024-11-18 16:08:49,542 INFO L226 Difference]: Without dead ends: 4003 [2024-11-18 16:08:49,544 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 [2024-11-18 16:08:49,545 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:49,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:49,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2024-11-18 16:08:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4001. [2024-11-18 16:08:49,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3999 states have (on average 1.52863215803951) internal successors, (6113), 4000 states have internal predecessors, (6113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6113 transitions. [2024-11-18 16:08:49,652 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6113 transitions. Word has length 69 [2024-11-18 16:08:49,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:49,653 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 6113 transitions. [2024-11-18 16:08:49,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6113 transitions. [2024-11-18 16:08:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 16:08:49,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:49,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:49,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:08:49,656 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:49,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:49,657 INFO L85 PathProgramCache]: Analyzing trace with hash 15485707, now seen corresponding path program 1 times [2024-11-18 16:08:49,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:49,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827360690] [2024-11-18 16:08:49,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:49,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:49,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:49,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827360690] [2024-11-18 16:08:49,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827360690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:49,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:49,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:49,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453896524] [2024-11-18 16:08:49,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:49,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:49,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:49,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:49,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:49,724 INFO L87 Difference]: Start difference. First operand 4001 states and 6113 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:49,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:49,823 INFO L93 Difference]: Finished difference Result 8645 states and 12867 transitions. [2024-11-18 16:08:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:49,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-18 16:08:49,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:49,845 INFO L225 Difference]: With dead ends: 8645 [2024-11-18 16:08:49,845 INFO L226 Difference]: Without dead ends: 6195 [2024-11-18 16:08:49,850 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 [2024-11-18 16:08:49,850 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:49,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:49,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2024-11-18 16:08:49,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 6193. [2024-11-18 16:08:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6191 states have (on average 1.4861896301082216) internal successors, (9201), 6192 states have internal predecessors, (9201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 9201 transitions. [2024-11-18 16:08:50,017 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 9201 transitions. Word has length 69 [2024-11-18 16:08:50,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:50,017 INFO L471 AbstractCegarLoop]: Abstraction has 6193 states and 9201 transitions. [2024-11-18 16:08:50,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:50,018 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 9201 transitions. [2024-11-18 16:08:50,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 16:08:50,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:50,019 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:50,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:08:50,019 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:50,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:50,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2036636858, now seen corresponding path program 1 times [2024-11-18 16:08:50,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:50,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979646663] [2024-11-18 16:08:50,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:50,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:50,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:50,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:50,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979646663] [2024-11-18 16:08:50,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979646663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:50,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:50,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:50,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92502844] [2024-11-18 16:08:50,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:50,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:50,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:50,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:50,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:50,133 INFO L87 Difference]: Start difference. First operand 6193 states and 9201 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:50,298 INFO L93 Difference]: Finished difference Result 11064 states and 16311 transitions. [2024-11-18 16:08:50,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:50,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-18 16:08:50,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:50,329 INFO L225 Difference]: With dead ends: 11064 [2024-11-18 16:08:50,329 INFO L226 Difference]: Without dead ends: 8437 [2024-11-18 16:08:50,338 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 [2024-11-18 16:08:50,338 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:50,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:08:50,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2024-11-18 16:08:50,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8435. [2024-11-18 16:08:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8435 states, 8433 states have (on average 1.4669749792481916) internal successors, (12371), 8434 states have internal predecessors, (12371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 12371 transitions. [2024-11-18 16:08:50,625 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 12371 transitions. Word has length 71 [2024-11-18 16:08:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:50,625 INFO L471 AbstractCegarLoop]: Abstraction has 8435 states and 12371 transitions. [2024-11-18 16:08:50,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 12371 transitions. [2024-11-18 16:08:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 16:08:50,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:50,628 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:50,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:08:50,629 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:50,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:50,629 INFO L85 PathProgramCache]: Analyzing trace with hash -921627462, now seen corresponding path program 1 times [2024-11-18 16:08:50,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807655837] [2024-11-18 16:08:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:50,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:08:50,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:50,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807655837] [2024-11-18 16:08:50,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807655837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:50,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:50,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:08:50,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051422409] [2024-11-18 16:08:50,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:50,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:08:50,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:50,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:08:50,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:08:50,744 INFO L87 Difference]: Start difference. First operand 8435 states and 12371 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:54,203 INFO L93 Difference]: Finished difference Result 11441 states and 17298 transitions. [2024-11-18 16:08:54,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:08:54,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-18 16:08:54,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:54,220 INFO L225 Difference]: With dead ends: 11441 [2024-11-18 16:08:54,220 INFO L226 Difference]: Without dead ends: 9937 [2024-11-18 16:08:54,224 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 [2024-11-18 16:08:54,226 INFO L432 NwaCegarLoop]: 1275 mSDtfsCounter, 753 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:54,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1409 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 16:08:54,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9937 states. [2024-11-18 16:08:54,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9937 to 9937. [2024-11-18 16:08:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9935 states have (on average 1.4622043281328636) internal successors, (14527), 9936 states have internal predecessors, (14527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 14527 transitions. [2024-11-18 16:08:54,450 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 14527 transitions. Word has length 87 [2024-11-18 16:08:54,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:54,450 INFO L471 AbstractCegarLoop]: Abstraction has 9937 states and 14527 transitions. [2024-11-18 16:08:54,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:54,451 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 14527 transitions. [2024-11-18 16:08:54,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:08:54,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:54,454 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:54,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:08:54,454 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:54,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:54,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1790597010, now seen corresponding path program 1 times [2024-11-18 16:08:54,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:54,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606188889] [2024-11-18 16:08:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:54,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:54,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 16:08:54,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:54,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606188889] [2024-11-18 16:08:54,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606188889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:54,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:54,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:08:54,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060525239] [2024-11-18 16:08:54,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:54,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:08:54,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:54,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:08:54,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:08:54,665 INFO L87 Difference]: Start difference. First operand 9937 states and 14527 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:55,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:55,465 INFO L93 Difference]: Finished difference Result 52671 states and 75654 transitions. [2024-11-18 16:08:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:08:55,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:08:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:55,549 INFO L225 Difference]: With dead ends: 52671 [2024-11-18 16:08:55,550 INFO L226 Difference]: Without dead ends: 45789 [2024-11-18 16:08:55,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:08:55,575 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8105 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8105 SdHoareTripleChecker+Valid, 3895 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:55,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8105 Valid, 3895 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:08:55,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45789 states. [2024-11-18 16:08:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45789 to 16817. [2024-11-18 16:08:56,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16817 states, 16815 states have (on average 1.4443651501635444) internal successors, (24287), 16816 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 24287 transitions. [2024-11-18 16:08:56,158 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 24287 transitions. Word has length 90 [2024-11-18 16:08:56,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:56,159 INFO L471 AbstractCegarLoop]: Abstraction has 16817 states and 24287 transitions. [2024-11-18 16:08:56,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:56,159 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 24287 transitions. [2024-11-18 16:08:56,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:08:56,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:56,162 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:56,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:08:56,163 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:56,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:56,163 INFO L85 PathProgramCache]: Analyzing trace with hash -552334994, now seen corresponding path program 1 times [2024-11-18 16:08:56,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:56,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632310229] [2024-11-18 16:08:56,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:56,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 16:08:56,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:56,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632310229] [2024-11-18 16:08:56,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632310229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:56,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:56,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:08:56,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029553320] [2024-11-18 16:08:56,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:56,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:08:56,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:56,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:08:56,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:08:56,420 INFO L87 Difference]: Start difference. First operand 16817 states and 24287 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:57,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:57,427 INFO L93 Difference]: Finished difference Result 59551 states and 85414 transitions. [2024-11-18 16:08:57,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:08:57,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:08:57,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:57,527 INFO L225 Difference]: With dead ends: 59551 [2024-11-18 16:08:57,527 INFO L226 Difference]: Without dead ends: 52669 [2024-11-18 16:08:57,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:08:57,551 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 8154 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8154 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:57,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8154 Valid, 3817 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:08:57,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52669 states. [2024-11-18 16:08:58,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52669 to 27153. [2024-11-18 16:08:58,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 27151 states have (on average 1.4307760303487902) internal successors, (38847), 27152 states have internal predecessors, (38847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 38847 transitions. [2024-11-18 16:08:58,465 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 38847 transitions. Word has length 90 [2024-11-18 16:08:58,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:08:58,465 INFO L471 AbstractCegarLoop]: Abstraction has 27153 states and 38847 transitions. [2024-11-18 16:08:58,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 38847 transitions. [2024-11-18 16:08:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:08:58,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:08:58,469 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:08:58,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:08:58,470 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:08:58,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:08:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1527163502, now seen corresponding path program 1 times [2024-11-18 16:08:58,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:08:58,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335440140] [2024-11-18 16:08:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:08:58,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:08:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:08:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 16:08:58,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:08:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335440140] [2024-11-18 16:08:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335440140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:08:58,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:08:58,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:08:58,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747349930] [2024-11-18 16:08:58,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:08:58,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:08:58,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:08:58,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:08:58,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:08:58,678 INFO L87 Difference]: Start difference. First operand 27153 states and 38847 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:08:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:08:59,660 INFO L93 Difference]: Finished difference Result 66431 states and 95174 transitions. [2024-11-18 16:08:59,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:08:59,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:08:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:08:59,767 INFO L225 Difference]: With dead ends: 66431 [2024-11-18 16:08:59,767 INFO L226 Difference]: Without dead ends: 59549 [2024-11-18 16:08:59,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:08:59,848 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8208 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8208 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:08:59,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8208 Valid, 3797 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:08:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59549 states. [2024-11-18 16:09:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59549 to 34033. [2024-11-18 16:09:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34033 states, 34031 states have (on average 1.4283153595251388) internal successors, (48607), 34032 states have internal predecessors, (48607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:00,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34033 states to 34033 states and 48607 transitions. [2024-11-18 16:09:00,834 INFO L78 Accepts]: Start accepts. Automaton has 34033 states and 48607 transitions. Word has length 90 [2024-11-18 16:09:00,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:00,834 INFO L471 AbstractCegarLoop]: Abstraction has 34033 states and 48607 transitions. [2024-11-18 16:09:00,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 34033 states and 48607 transitions. [2024-11-18 16:09:00,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:00,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:00,838 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:00,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:09:00,839 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:00,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:00,839 INFO L85 PathProgramCache]: Analyzing trace with hash -986870930, now seen corresponding path program 1 times [2024-11-18 16:09:00,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:00,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924990822] [2024-11-18 16:09:00,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:00,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:01,059 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 16:09:01,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:01,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924990822] [2024-11-18 16:09:01,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924990822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:01,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:01,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:01,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335982159] [2024-11-18 16:09:01,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:01,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:01,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:01,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:01,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:01,061 INFO L87 Difference]: Start difference. First operand 34033 states and 48607 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:02,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:02,448 INFO L93 Difference]: Finished difference Result 73311 states and 104934 transitions. [2024-11-18 16:09:02,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:02,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:09:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:02,531 INFO L225 Difference]: With dead ends: 73311 [2024-11-18 16:09:02,531 INFO L226 Difference]: Without dead ends: 66429 [2024-11-18 16:09:02,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:02,557 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8108 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:02,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8108 Valid, 3911 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:02,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66429 states. [2024-11-18 16:09:03,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66429 to 40913. [2024-11-18 16:09:03,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40913 states, 40911 states have (on average 1.426682310381071) internal successors, (58367), 40912 states have internal predecessors, (58367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40913 states to 40913 states and 58367 transitions. [2024-11-18 16:09:03,991 INFO L78 Accepts]: Start accepts. Automaton has 40913 states and 58367 transitions. Word has length 90 [2024-11-18 16:09:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:03,994 INFO L471 AbstractCegarLoop]: Abstraction has 40913 states and 58367 transitions. [2024-11-18 16:09:03,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:03,994 INFO L276 IsEmpty]: Start isEmpty. Operand 40913 states and 58367 transitions. [2024-11-18 16:09:03,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:04,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:04,002 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:04,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:09:04,002 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:04,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2054453394, now seen corresponding path program 1 times [2024-11-18 16:09:04,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:04,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543549605] [2024-11-18 16:09:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:04,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 16:09:04,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:04,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543549605] [2024-11-18 16:09:04,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543549605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:04,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:04,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:04,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167570392] [2024-11-18 16:09:04,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:04,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:04,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:04,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:04,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:04,214 INFO L87 Difference]: Start difference. First operand 40913 states and 58367 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:05,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:05,644 INFO L93 Difference]: Finished difference Result 80191 states and 114694 transitions. [2024-11-18 16:09:05,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:05,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:09:05,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:05,825 INFO L225 Difference]: With dead ends: 80191 [2024-11-18 16:09:05,826 INFO L226 Difference]: Without dead ends: 73309 [2024-11-18 16:09:05,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:05,851 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8044 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8044 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:05,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8044 Valid, 4067 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:05,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73309 states. [2024-11-18 16:09:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73309 to 47793. [2024-11-18 16:09:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47793 states, 47791 states have (on average 1.4255194492686907) internal successors, (68127), 47792 states have internal predecessors, (68127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47793 states to 47793 states and 68127 transitions. [2024-11-18 16:09:07,410 INFO L78 Accepts]: Start accepts. Automaton has 47793 states and 68127 transitions. Word has length 90 [2024-11-18 16:09:07,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:07,411 INFO L471 AbstractCegarLoop]: Abstraction has 47793 states and 68127 transitions. [2024-11-18 16:09:07,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 47793 states and 68127 transitions. [2024-11-18 16:09:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:09:07,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:07,417 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:07,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:09:07,417 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:07,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:07,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1779417615, now seen corresponding path program 1 times [2024-11-18 16:09:07,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:07,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728006271] [2024-11-18 16:09:07,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:07,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:07,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:07,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728006271] [2024-11-18 16:09:07,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728006271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:07,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:07,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:09:07,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810787957] [2024-11-18 16:09:07,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:07,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:07,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:07,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:07,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:07,513 INFO L87 Difference]: Start difference. First operand 47793 states and 68127 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:11,220 INFO L93 Difference]: Finished difference Result 53805 states and 77367 transitions. [2024-11-18 16:09:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:11,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-18 16:09:11,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:11,289 INFO L225 Difference]: With dead ends: 53805 [2024-11-18 16:09:11,290 INFO L226 Difference]: Without dead ends: 50799 [2024-11-18 16:09:11,300 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 [2024-11-18 16:09:11,301 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 852 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:11,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 626 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 16:09:11,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50799 states. [2024-11-18 16:09:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50799 to 50797. [2024-11-18 16:09:12,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50797 states, 50795 states have (on average 1.4117137513534797) internal successors, (71708), 50796 states have internal predecessors, (71708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50797 states to 50797 states and 71708 transitions. [2024-11-18 16:09:12,592 INFO L78 Accepts]: Start accepts. Automaton has 50797 states and 71708 transitions. Word has length 90 [2024-11-18 16:09:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:12,592 INFO L471 AbstractCegarLoop]: Abstraction has 50797 states and 71708 transitions. [2024-11-18 16:09:12,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 50797 states and 71708 transitions. [2024-11-18 16:09:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 16:09:12,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:12,598 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:12,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:09:12,598 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:12,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:12,599 INFO L85 PathProgramCache]: Analyzing trace with hash -518872124, now seen corresponding path program 1 times [2024-11-18 16:09:12,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:12,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012297430] [2024-11-18 16:09:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:12,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:12,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:12,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012297430] [2024-11-18 16:09:12,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012297430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:12,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:12,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:09:12,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35682334] [2024-11-18 16:09:12,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:12,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:12,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:12,668 INFO L87 Difference]: Start difference. First operand 50797 states and 71708 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:16,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:16,201 INFO L93 Difference]: Finished difference Result 62817 states and 88110 transitions. [2024-11-18 16:09:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:16,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-18 16:09:16,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:16,269 INFO L225 Difference]: With dead ends: 62817 [2024-11-18 16:09:16,269 INFO L226 Difference]: Without dead ends: 56807 [2024-11-18 16:09:16,284 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 [2024-11-18 16:09:16,285 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 1041 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:16,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 721 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 16:09:16,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56807 states. [2024-11-18 16:09:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56807 to 56805. [2024-11-18 16:09:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56805 states, 56803 states have (on average 1.3886942591060332) internal successors, (78882), 56804 states have internal predecessors, (78882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56805 states to 56805 states and 78882 transitions. [2024-11-18 16:09:17,933 INFO L78 Accepts]: Start accepts. Automaton has 56805 states and 78882 transitions. Word has length 91 [2024-11-18 16:09:17,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:17,933 INFO L471 AbstractCegarLoop]: Abstraction has 56805 states and 78882 transitions. [2024-11-18 16:09:17,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 56805 states and 78882 transitions. [2024-11-18 16:09:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 16:09:17,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:17,939 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:17,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:09:17,939 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:17,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash 168958598, now seen corresponding path program 1 times [2024-11-18 16:09:17,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:17,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672726064] [2024-11-18 16:09:17,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:17,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:18,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:18,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672726064] [2024-11-18 16:09:18,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672726064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:18,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:18,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400069747] [2024-11-18 16:09:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:18,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:18,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:18,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:18,075 INFO L87 Difference]: Start difference. First operand 56805 states and 78882 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:18,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:18,845 INFO L93 Difference]: Finished difference Result 88447 states and 124251 transitions. [2024-11-18 16:09:18,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:18,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-18 16:09:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:18,889 INFO L225 Difference]: With dead ends: 88447 [2024-11-18 16:09:18,889 INFO L226 Difference]: Without dead ends: 43709 [2024-11-18 16:09:18,906 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 [2024-11-18 16:09:18,906 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:18,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:18,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43709 states. [2024-11-18 16:09:19,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43709 to 43707. [2024-11-18 16:09:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43707 states, 43705 states have (on average 1.3814437707356138) internal successors, (60376), 43706 states have internal predecessors, (60376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:19,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43707 states to 43707 states and 60376 transitions. [2024-11-18 16:09:19,913 INFO L78 Accepts]: Start accepts. Automaton has 43707 states and 60376 transitions. Word has length 92 [2024-11-18 16:09:19,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:19,913 INFO L471 AbstractCegarLoop]: Abstraction has 43707 states and 60376 transitions. [2024-11-18 16:09:19,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:19,913 INFO L276 IsEmpty]: Start isEmpty. Operand 43707 states and 60376 transitions. [2024-11-18 16:09:19,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 16:09:19,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:19,917 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:19,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 16:09:19,918 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:19,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:19,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1616712425, now seen corresponding path program 1 times [2024-11-18 16:09:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:19,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600268911] [2024-11-18 16:09:19,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:19,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:09:20,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:20,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600268911] [2024-11-18 16:09:20,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600268911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:20,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:20,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:09:20,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285727937] [2024-11-18 16:09:20,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:20,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:09:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:09:20,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:09:20,143 INFO L87 Difference]: Start difference. First operand 43707 states and 60376 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:21,465 INFO L93 Difference]: Finished difference Result 72905 states and 102239 transitions. [2024-11-18 16:09:21,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:09:21,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-18 16:09:21,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:21,556 INFO L225 Difference]: With dead ends: 72905 [2024-11-18 16:09:21,556 INFO L226 Difference]: Without dead ends: 68039 [2024-11-18 16:09:21,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:09:21,572 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8058 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8058 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:21,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8058 Valid, 3984 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:09:21,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68039 states. [2024-11-18 16:09:22,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68039 to 48571. [2024-11-18 16:09:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48571 states, 48569 states have (on average 1.3854104469929378) internal successors, (67288), 48570 states have internal predecessors, (67288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:22,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48571 states to 48571 states and 67288 transitions. [2024-11-18 16:09:22,966 INFO L78 Accepts]: Start accepts. Automaton has 48571 states and 67288 transitions. Word has length 92 [2024-11-18 16:09:22,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:22,966 INFO L471 AbstractCegarLoop]: Abstraction has 48571 states and 67288 transitions. [2024-11-18 16:09:22,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 48571 states and 67288 transitions. [2024-11-18 16:09:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 16:09:22,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:22,969 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:22,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 16:09:22,970 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:22,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:22,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1117757048, now seen corresponding path program 1 times [2024-11-18 16:09:22,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:22,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054514129] [2024-11-18 16:09:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:22,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:23,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054514129] [2024-11-18 16:09:23,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054514129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:23,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:23,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:23,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504733056] [2024-11-18 16:09:23,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:23,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:23,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:23,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:23,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:23,071 INFO L87 Difference]: Start difference. First operand 48571 states and 67288 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:23,442 INFO L93 Difference]: Finished difference Result 66815 states and 93210 transitions. [2024-11-18 16:09:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:23,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 16:09:23,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:23,476 INFO L225 Difference]: With dead ends: 66815 [2024-11-18 16:09:23,476 INFO L226 Difference]: Without dead ends: 30333 [2024-11-18 16:09:23,506 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 [2024-11-18 16:09:23,507 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:23,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:23,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30333 states. [2024-11-18 16:09:24,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30333 to 30331. [2024-11-18 16:09:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30331 states, 30329 states have (on average 1.3560618549902734) internal successors, (41128), 30330 states have internal predecessors, (41128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30331 states to 30331 states and 41128 transitions. [2024-11-18 16:09:24,326 INFO L78 Accepts]: Start accepts. Automaton has 30331 states and 41128 transitions. Word has length 93 [2024-11-18 16:09:24,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:24,326 INFO L471 AbstractCegarLoop]: Abstraction has 30331 states and 41128 transitions. [2024-11-18 16:09:24,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:24,327 INFO L276 IsEmpty]: Start isEmpty. Operand 30331 states and 41128 transitions. [2024-11-18 16:09:24,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 16:09:24,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:24,330 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:24,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 16:09:24,331 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:24,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1320571018, now seen corresponding path program 1 times [2024-11-18 16:09:24,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:24,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255728818] [2024-11-18 16:09:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:24,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:24,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:24,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255728818] [2024-11-18 16:09:24,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255728818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:24,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:24,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:24,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735827395] [2024-11-18 16:09:24,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:24,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:24,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:24,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:24,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:24,477 INFO L87 Difference]: Start difference. First operand 30331 states and 41128 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:24,953 INFO L93 Difference]: Finished difference Result 39455 states and 53970 transitions. [2024-11-18 16:09:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-18 16:09:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:24,983 INFO L225 Difference]: With dead ends: 39455 [2024-11-18 16:09:24,983 INFO L226 Difference]: Without dead ends: 21213 [2024-11-18 16:09:24,998 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 [2024-11-18 16:09:24,999 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:25,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21213 states. [2024-11-18 16:09:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21213 to 21211. [2024-11-18 16:09:25,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21211 states, 21209 states have (on average 1.3281154226979113) internal successors, (28168), 21210 states have internal predecessors, (28168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21211 states to 21211 states and 28168 transitions. [2024-11-18 16:09:25,316 INFO L78 Accepts]: Start accepts. Automaton has 21211 states and 28168 transitions. Word has length 95 [2024-11-18 16:09:25,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:25,317 INFO L471 AbstractCegarLoop]: Abstraction has 21211 states and 28168 transitions. [2024-11-18 16:09:25,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 21211 states and 28168 transitions. [2024-11-18 16:09:25,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-18 16:09:25,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:25,318 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:25,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 16:09:25,319 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:25,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:25,319 INFO L85 PathProgramCache]: Analyzing trace with hash -969080548, now seen corresponding path program 1 times [2024-11-18 16:09:25,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:25,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990288045] [2024-11-18 16:09:25,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:25,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:25,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:25,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990288045] [2024-11-18 16:09:25,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990288045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:25,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:25,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:25,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142527729] [2024-11-18 16:09:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:25,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:25,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:25,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:25,422 INFO L87 Difference]: Start difference. First operand 21211 states and 28168 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:25,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:25,673 INFO L93 Difference]: Finished difference Result 25775 states and 34530 transitions. [2024-11-18 16:09:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:25,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-18 16:09:25,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:25,690 INFO L225 Difference]: With dead ends: 25775 [2024-11-18 16:09:25,690 INFO L226 Difference]: Without dead ends: 16653 [2024-11-18 16:09:25,698 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 [2024-11-18 16:09:25,699 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:25,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:25,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16653 states. [2024-11-18 16:09:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16653 to 16651. [2024-11-18 16:09:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16651 states, 16649 states have (on average 1.3062646405189502) internal successors, (21748), 16650 states have internal predecessors, (21748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16651 states to 16651 states and 21748 transitions. [2024-11-18 16:09:25,888 INFO L78 Accepts]: Start accepts. Automaton has 16651 states and 21748 transitions. Word has length 97 [2024-11-18 16:09:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:25,888 INFO L471 AbstractCegarLoop]: Abstraction has 16651 states and 21748 transitions. [2024-11-18 16:09:25,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 16651 states and 21748 transitions. [2024-11-18 16:09:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-18 16:09:25,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:25,890 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:25,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 16:09:25,890 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:25,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:25,890 INFO L85 PathProgramCache]: Analyzing trace with hash -83832786, now seen corresponding path program 1 times [2024-11-18 16:09:25,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:25,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062818725] [2024-11-18 16:09:25,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:25,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:25,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:25,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062818725] [2024-11-18 16:09:25,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062818725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:25,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:25,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:25,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605014776] [2024-11-18 16:09:25,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:25,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:25,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:25,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:25,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:25,985 INFO L87 Difference]: Start difference. First operand 16651 states and 21748 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:26,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:26,083 INFO L93 Difference]: Finished difference Result 18935 states and 24900 transitions. [2024-11-18 16:09:26,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:26,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-18 16:09:26,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:26,103 INFO L225 Difference]: With dead ends: 18935 [2024-11-18 16:09:26,104 INFO L226 Difference]: Without dead ends: 14373 [2024-11-18 16:09:26,112 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 [2024-11-18 16:09:26,113 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:26,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:26,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14373 states. [2024-11-18 16:09:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14373 to 14371. [2024-11-18 16:09:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14371 states, 14369 states have (on average 1.2922263205511866) internal successors, (18568), 14370 states have internal predecessors, (18568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:26,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14371 states to 14371 states and 18568 transitions. [2024-11-18 16:09:26,335 INFO L78 Accepts]: Start accepts. Automaton has 14371 states and 18568 transitions. Word has length 99 [2024-11-18 16:09:26,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:26,335 INFO L471 AbstractCegarLoop]: Abstraction has 14371 states and 18568 transitions. [2024-11-18 16:09:26,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 14371 states and 18568 transitions. [2024-11-18 16:09:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:09:26,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:26,337 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:26,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 16:09:26,337 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:26,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:26,337 INFO L85 PathProgramCache]: Analyzing trace with hash -709435968, now seen corresponding path program 1 times [2024-11-18 16:09:26,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:26,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377206983] [2024-11-18 16:09:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:26,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:26,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:26,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377206983] [2024-11-18 16:09:26,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377206983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:09:26,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:09:26,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:09:26,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582976262] [2024-11-18 16:09:26,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:09:26,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:09:26,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:26,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:09:26,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:09:26,429 INFO L87 Difference]: Start difference. First operand 14371 states and 18568 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:26,500 INFO L93 Difference]: Finished difference Result 15515 states and 20130 transitions. [2024-11-18 16:09:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:09:26,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-18 16:09:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:26,517 INFO L225 Difference]: With dead ends: 15515 [2024-11-18 16:09:26,518 INFO L226 Difference]: Without dead ends: 13233 [2024-11-18 16:09:26,524 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 [2024-11-18 16:09:26,525 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:26,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:09:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13233 states. [2024-11-18 16:09:26,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13233 to 13231. [2024-11-18 16:09:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13231 states, 13229 states have (on average 1.2845264192304784) internal successors, (16993), 13230 states have internal predecessors, (16993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13231 states to 13231 states and 16993 transitions. [2024-11-18 16:09:26,685 INFO L78 Accepts]: Start accepts. Automaton has 13231 states and 16993 transitions. Word has length 101 [2024-11-18 16:09:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:26,685 INFO L471 AbstractCegarLoop]: Abstraction has 13231 states and 16993 transitions. [2024-11-18 16:09:26,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 13231 states and 16993 transitions. [2024-11-18 16:09:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 16:09:26,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:26,686 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:26,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 16:09:26,687 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:26,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:26,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1744587218, now seen corresponding path program 1 times [2024-11-18 16:09:26,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:26,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147261921] [2024-11-18 16:09:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:26,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:27,596 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:27,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:27,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147261921] [2024-11-18 16:09:27,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147261921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:09:27,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614532183] [2024-11-18 16:09:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:27,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:09:27,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:09:27,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 16:09:27,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 16:09:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:27,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 16:09:27,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:09:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:09:28,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:09:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:09:28,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614532183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:09:28,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:09:28,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-18 16:09:28,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892816717] [2024-11-18 16:09:28,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:09:28,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 16:09:28,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:28,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 16:09:28,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-18 16:09:28,398 INFO L87 Difference]: Start difference. First operand 13231 states and 16993 transitions. Second operand has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:31,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:31,110 INFO L93 Difference]: Finished difference Result 22062 states and 28935 transitions. [2024-11-18 16:09:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-18 16:09:31,111 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 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 103 [2024-11-18 16:09:31,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:31,137 INFO L225 Difference]: With dead ends: 22062 [2024-11-18 16:09:31,137 INFO L226 Difference]: Without dead ends: 20920 [2024-11-18 16:09:31,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1292 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=774, Invalid=3516, Unknown=0, NotChecked=0, Total=4290 [2024-11-18 16:09:31,147 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 16263 mSDsluCounter, 7962 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16263 SdHoareTripleChecker+Valid, 9497 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:31,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16263 Valid, 9497 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:09:31,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20920 states. [2024-11-18 16:09:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20920 to 20868. [2024-11-18 16:09:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20868 states, 20866 states have (on average 1.289274417713026) internal successors, (26902), 20867 states have internal predecessors, (26902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:31,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20868 states to 20868 states and 26902 transitions. [2024-11-18 16:09:31,705 INFO L78 Accepts]: Start accepts. Automaton has 20868 states and 26902 transitions. Word has length 103 [2024-11-18 16:09:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:31,705 INFO L471 AbstractCegarLoop]: Abstraction has 20868 states and 26902 transitions. [2024-11-18 16:09:31,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 20868 states and 26902 transitions. [2024-11-18 16:09:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:09:31,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:31,706 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:31,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 16:09:31,907 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,SelfDestructingSolverStorable27 [2024-11-18 16:09:31,907 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:31,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:31,907 INFO L85 PathProgramCache]: Analyzing trace with hash -520471001, now seen corresponding path program 1 times [2024-11-18 16:09:31,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:31,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748345005] [2024-11-18 16:09:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:31,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:32,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:32,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748345005] [2024-11-18 16:09:32,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748345005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:09:32,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886437908] [2024-11-18 16:09:32,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:32,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:09:32,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:09:32,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 16:09:32,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 16:09:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:32,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-18 16:09:32,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:09:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:33,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:09:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:34,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886437908] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:09:34,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:09:34,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-11-18 16:09:34,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257194856] [2024-11-18 16:09:34,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:09:34,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-18 16:09:34,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:34,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-18 16:09:34,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2024-11-18 16:09:34,867 INFO L87 Difference]: Start difference. First operand 20868 states and 26902 transitions. Second operand has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:37,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:37,997 INFO L93 Difference]: Finished difference Result 47186 states and 61335 transitions. [2024-11-18 16:09:37,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-18 16:09:37,998 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 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 104 [2024-11-18 16:09:37,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:38,044 INFO L225 Difference]: With dead ends: 47186 [2024-11-18 16:09:38,044 INFO L226 Difference]: Without dead ends: 38473 [2024-11-18 16:09:38,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=950, Invalid=3606, Unknown=0, NotChecked=0, Total=4556 [2024-11-18 16:09:38,055 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 23670 mSDsluCounter, 5188 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23670 SdHoareTripleChecker+Valid, 6708 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:38,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23670 Valid, 6708 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 16:09:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38473 states. [2024-11-18 16:09:38,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38473 to 37971. [2024-11-18 16:09:38,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37971 states, 37969 states have (on average 1.287049961810951) internal successors, (48868), 37970 states have internal predecessors, (48868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37971 states to 37971 states and 48868 transitions. [2024-11-18 16:09:38,813 INFO L78 Accepts]: Start accepts. Automaton has 37971 states and 48868 transitions. Word has length 104 [2024-11-18 16:09:38,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:38,813 INFO L471 AbstractCegarLoop]: Abstraction has 37971 states and 48868 transitions. [2024-11-18 16:09:38,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand 37971 states and 48868 transitions. [2024-11-18 16:09:38,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 16:09:38,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:38,815 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:38,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 16:09:39,015 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,SelfDestructingSolverStorable28 [2024-11-18 16:09:39,016 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:39,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1322202215, now seen corresponding path program 1 times [2024-11-18 16:09:39,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:39,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404481127] [2024-11-18 16:09:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:39,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:39,496 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:39,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:39,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404481127] [2024-11-18 16:09:39,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404481127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:09:39,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849960880] [2024-11-18 16:09:39,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:39,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:09:39,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:09:39,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 16:09:39,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 16:09:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:39,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 16:09:39,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:09:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:40,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:09:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:40,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849960880] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:09:40,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 16:09:40,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-18 16:09:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46810256] [2024-11-18 16:09:40,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 16:09:40,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-18 16:09:40,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:09:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-18 16:09:40,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-18 16:09:40,984 INFO L87 Difference]: Start difference. First operand 37971 states and 48868 transitions. Second operand has 23 states, 23 states have (on average 11.217391304347826) internal successors, (258), 22 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:41,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:09:41,971 INFO L93 Difference]: Finished difference Result 63345 states and 81704 transitions. [2024-11-18 16:09:41,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 16:09:41,972 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.217391304347826) internal successors, (258), 22 states have internal predecessors, (258), 0 states have call successors, (0), 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 104 [2024-11-18 16:09:41,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:09:42,016 INFO L225 Difference]: With dead ends: 63345 [2024-11-18 16:09:42,016 INFO L226 Difference]: Without dead ends: 38761 [2024-11-18 16:09:42,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-18 16:09:42,040 INFO L432 NwaCegarLoop]: 1531 mSDtfsCounter, 9463 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9463 SdHoareTripleChecker+Valid, 4805 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:09:42,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9463 Valid, 4805 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:09:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38761 states. [2024-11-18 16:09:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38761 to 35211. [2024-11-18 16:09:42,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35211 states, 35209 states have (on average 1.2709250475730638) internal successors, (44748), 35210 states have internal predecessors, (44748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35211 states to 35211 states and 44748 transitions. [2024-11-18 16:09:42,852 INFO L78 Accepts]: Start accepts. Automaton has 35211 states and 44748 transitions. Word has length 104 [2024-11-18 16:09:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:09:42,853 INFO L471 AbstractCegarLoop]: Abstraction has 35211 states and 44748 transitions. [2024-11-18 16:09:42,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.217391304347826) internal successors, (258), 22 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:09:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 35211 states and 44748 transitions. [2024-11-18 16:09:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-18 16:09:42,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:09:42,855 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:09:42,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 16:09:43,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:09:43,060 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:09:43,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:09:43,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1032021844, now seen corresponding path program 1 times [2024-11-18 16:09:43,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:09:43,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749193841] [2024-11-18 16:09:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:43,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:09:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:09:43,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:09:43,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749193841] [2024-11-18 16:09:43,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749193841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 16:09:43,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515113439] [2024-11-18 16:09:43,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:09:43,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 16:09:43,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:09:43,451 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 16:09:43,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 16:09:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:09:43,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 16:09:43,637 INFO L278 TraceCheckSpWp]: Computing forward predicates...