./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label45.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/eca-rers2012/Problem17_label45.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 bad588c9542390857efe8d001f4c41a270c4260c6e96db502f4ea1506acc7b02 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:41:24,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:41:24,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:41:24,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:41:24,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:41:24,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:41:24,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:41:24,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:41:24,429 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:41:24,430 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:41:24,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:41:24,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:41:24,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:41:24,435 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:41:24,435 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:41:24,436 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:41:24,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:41:24,436 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:41:24,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:41:24,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:41:24,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:41:24,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:41:24,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:41:24,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:41:24,440 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:41:24,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:41:24,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:41:24,441 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:41:24,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:41:24,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:41:24,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:41:24,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:41:24,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:41:24,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:41:24,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:41:24,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:41:24,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:41:24,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:41:24,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:41:24,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:41:24,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:41:24,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:41:24,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad588c9542390857efe8d001f4c41a270c4260c6e96db502f4ea1506acc7b02 [2024-11-08 11:41:24,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:41:24,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:41:24,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:41:24,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:41:24,730 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:41:24,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label45.c [2024-11-08 11:41:26,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:41:26,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:41:26,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label45.c [2024-11-08 11:41:26,641 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859a10ae8/cda72ba5be244a72aa78993001c0beee/FLAGff867516a [2024-11-08 11:41:26,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859a10ae8/cda72ba5be244a72aa78993001c0beee [2024-11-08 11:41:26,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:41:26,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:41:26,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:41:26,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:41:26,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:41:26,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:41:26" (1/1) ... [2024-11-08 11:41:26,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a86e623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:26, skipping insertion in model container [2024-11-08 11:41:26,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:41:26" (1/1) ... [2024-11-08 11:41:26,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:41:27,072 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/eca-rers2012/Problem17_label45.c[7434,7447] [2024-11-08 11:41:27,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:41:27,582 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:41:27,605 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/eca-rers2012/Problem17_label45.c[7434,7447] [2024-11-08 11:41:27,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:41:27,864 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:41:27,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27 WrapperNode [2024-11-08 11:41:27,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:41:27,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:41:27,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:41:27,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:41:27,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:27,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,200 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-11-08 11:41:28,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:41:28,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:41:28,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:41:28,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:41:28,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,413 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]. [2024-11-08 11:41:28,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:41:28,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:41:28,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:41:28,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:41:28,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (1/1) ... [2024-11-08 11:41:28,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:41:28,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:41:28,676 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) [2024-11-08 11:41:28,679 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 [2024-11-08 11:41:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:41:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:41:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:41:28,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:41:28,784 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:41:28,786 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:41:32,018 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-08 11:41:32,018 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:41:32,052 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:41:32,052 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:41:32,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:41:32 BoogieIcfgContainer [2024-11-08 11:41:32,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:41:32,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:41:32,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:41:32,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:41:32,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:41:26" (1/3) ... [2024-11-08 11:41:32,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d26149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:41:32, skipping insertion in model container [2024-11-08 11:41:32,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:27" (2/3) ... [2024-11-08 11:41:32,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d26149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:41:32, skipping insertion in model container [2024-11-08 11:41:32,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:41:32" (3/3) ... [2024-11-08 11:41:32,071 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label45.c [2024-11-08 11:41:32,085 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:41:32,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:41:32,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:41:32,171 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;@277f83c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:41:32,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:41:32,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:32,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 11:41:32,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:32,186 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] [2024-11-08 11:41:32,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:32,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash 761214138, now seen corresponding path program 1 times [2024-11-08 11:41:32,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:32,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892167691] [2024-11-08 11:41:32,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:32,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:32,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:32,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892167691] [2024-11-08 11:41:32,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892167691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:32,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:32,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:41:32,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394267685] [2024-11-08 11:41:32,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:32,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:32,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:32,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:32,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:32,634 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 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 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:35,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:35,104 INFO L93 Difference]: Finished difference Result 1642 states and 3024 transitions. [2024-11-08 11:41:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:35,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-08 11:41:35,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:35,123 INFO L225 Difference]: With dead ends: 1642 [2024-11-08 11:41:35,123 INFO L226 Difference]: Without dead ends: 975 [2024-11-08 11:41:35,128 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 [2024-11-08 11:41:35,131 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 440 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:35,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 550 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 11:41:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-08 11:41:35,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 972. [2024-11-08 11:41:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 1.5077239958805355) internal successors, (1464), 971 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1464 transitions. [2024-11-08 11:41:35,215 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1464 transitions. Word has length 50 [2024-11-08 11:41:35,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:35,216 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1464 transitions. [2024-11-08 11:41:35,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:35,216 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1464 transitions. [2024-11-08 11:41:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 11:41:35,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:35,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:35,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:41:35,220 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:35,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1698886982, now seen corresponding path program 1 times [2024-11-08 11:41:35,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:35,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344672667] [2024-11-08 11:41:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:35,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:35,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:35,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344672667] [2024-11-08 11:41:35,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344672667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:35,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:35,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:35,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529657833] [2024-11-08 11:41:35,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:35,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:35,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:35,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:35,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:35,567 INFO L87 Difference]: Start difference. First operand 972 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:37,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:37,620 INFO L93 Difference]: Finished difference Result 2814 states and 4242 transitions. [2024-11-08 11:41:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:37,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-08 11:41:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:37,629 INFO L225 Difference]: With dead ends: 2814 [2024-11-08 11:41:37,629 INFO L226 Difference]: Without dead ends: 1844 [2024-11-08 11:41:37,633 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 [2024-11-08 11:41:37,634 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 441 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:37,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 921 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:41:37,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-08 11:41:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1842. [2024-11-08 11:41:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1841 states have (on average 1.3601303639326452) internal successors, (2504), 1841 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2504 transitions. [2024-11-08 11:41:37,679 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2504 transitions. Word has length 120 [2024-11-08 11:41:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:37,681 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2504 transitions. [2024-11-08 11:41:37,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2504 transitions. [2024-11-08 11:41:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-08 11:41:37,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:37,691 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:37,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:41:37,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:37,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:37,692 INFO L85 PathProgramCache]: Analyzing trace with hash -859485079, now seen corresponding path program 1 times [2024-11-08 11:41:37,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:37,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259622938] [2024-11-08 11:41:37,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:37,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:37,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:37,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259622938] [2024-11-08 11:41:37,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259622938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:37,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:37,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:41:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907011416] [2024-11-08 11:41:37,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:37,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:37,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:37,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:37,875 INFO L87 Difference]: Start difference. First operand 1842 states and 2504 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:39,894 INFO L93 Difference]: Finished difference Result 5395 states and 7326 transitions. [2024-11-08 11:41:39,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:39,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-08 11:41:39,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:39,905 INFO L225 Difference]: With dead ends: 5395 [2024-11-08 11:41:39,906 INFO L226 Difference]: Without dead ends: 2701 [2024-11-08 11:41:39,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:39,911 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 368 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:39,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:41:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2024-11-08 11:41:39,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2701. [2024-11-08 11:41:39,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 1.191851851851852) internal successors, (3218), 2700 states have internal predecessors, (3218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3218 transitions. [2024-11-08 11:41:39,965 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3218 transitions. Word has length 142 [2024-11-08 11:41:39,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:39,967 INFO L471 AbstractCegarLoop]: Abstraction has 2701 states and 3218 transitions. [2024-11-08 11:41:39,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:39,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3218 transitions. [2024-11-08 11:41:39,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-08 11:41:39,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:39,973 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:39,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:41:39,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:39,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1759632867, now seen corresponding path program 1 times [2024-11-08 11:41:39,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:39,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351705657] [2024-11-08 11:41:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:39,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:40,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:40,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351705657] [2024-11-08 11:41:40,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351705657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:40,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:40,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:40,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517430477] [2024-11-08 11:41:40,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:40,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:40,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:40,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:40,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:40,315 INFO L87 Difference]: Start difference. First operand 2701 states and 3218 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:41,676 INFO L93 Difference]: Finished difference Result 7108 states and 8598 transitions. [2024-11-08 11:41:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:41,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2024-11-08 11:41:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:41,690 INFO L225 Difference]: With dead ends: 7108 [2024-11-08 11:41:41,690 INFO L226 Difference]: Without dead ends: 4409 [2024-11-08 11:41:41,693 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 [2024-11-08 11:41:41,694 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:41,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 784 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:41:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4409 states. [2024-11-08 11:41:41,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4409 to 4409. [2024-11-08 11:41:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4408 states have (on average 1.1705989110707804) internal successors, (5160), 4408 states have internal predecessors, (5160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:41,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 5160 transitions. [2024-11-08 11:41:41,758 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 5160 transitions. Word has length 202 [2024-11-08 11:41:41,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:41,758 INFO L471 AbstractCegarLoop]: Abstraction has 4409 states and 5160 transitions. [2024-11-08 11:41:41,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 5160 transitions. [2024-11-08 11:41:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-08 11:41:41,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:41,761 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:41,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:41:41,761 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:41,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:41,762 INFO L85 PathProgramCache]: Analyzing trace with hash -686975016, now seen corresponding path program 1 times [2024-11-08 11:41:41,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:41,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395720325] [2024-11-08 11:41:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:41,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:41,931 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 11:41:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395720325] [2024-11-08 11:41:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395720325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:41,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:41,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:41,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717100081] [2024-11-08 11:41:41,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:41,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:41,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:41,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:41,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:41,937 INFO L87 Difference]: Start difference. First operand 4409 states and 5160 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:43,462 INFO L93 Difference]: Finished difference Result 10936 states and 12970 transitions. [2024-11-08 11:41:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:43,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 204 [2024-11-08 11:41:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:43,481 INFO L225 Difference]: With dead ends: 10936 [2024-11-08 11:41:43,481 INFO L226 Difference]: Without dead ends: 6528 [2024-11-08 11:41:43,486 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 [2024-11-08 11:41:43,490 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 401 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:43,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 444 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:41:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6528 states. [2024-11-08 11:41:43,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6528 to 4382. [2024-11-08 11:41:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4381 states have (on average 1.1684546907098836) internal successors, (5119), 4381 states have internal predecessors, (5119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 5119 transitions. [2024-11-08 11:41:43,565 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 5119 transitions. Word has length 204 [2024-11-08 11:41:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:43,566 INFO L471 AbstractCegarLoop]: Abstraction has 4382 states and 5119 transitions. [2024-11-08 11:41:43,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 5119 transitions. [2024-11-08 11:41:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-08 11:41:43,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:43,570 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:41:43,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:41:43,571 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:43,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash -959867106, now seen corresponding path program 1 times [2024-11-08 11:41:43,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:43,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339318820] [2024-11-08 11:41:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:43,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:43,856 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:41:43,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:43,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339318820] [2024-11-08 11:41:43,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339318820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:43,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:43,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:43,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500967107] [2024-11-08 11:41:43,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:43,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:43,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:43,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:43,859 INFO L87 Difference]: Start difference. First operand 4382 states and 5119 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:45,387 INFO L93 Difference]: Finished difference Result 10045 states and 11706 transitions. [2024-11-08 11:41:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:45,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 270 [2024-11-08 11:41:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:45,407 INFO L225 Difference]: With dead ends: 10045 [2024-11-08 11:41:45,407 INFO L226 Difference]: Without dead ends: 5665 [2024-11-08 11:41:45,413 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 [2024-11-08 11:41:45,415 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 386 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:45,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 894 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:41:45,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2024-11-08 11:41:45,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5234. [2024-11-08 11:41:45,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5234 states, 5233 states have (on average 1.1587999235620103) internal successors, (6064), 5233 states have internal predecessors, (6064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:45,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 6064 transitions. [2024-11-08 11:41:45,496 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 6064 transitions. Word has length 270 [2024-11-08 11:41:45,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:45,497 INFO L471 AbstractCegarLoop]: Abstraction has 5234 states and 6064 transitions. [2024-11-08 11:41:45,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:45,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 6064 transitions. [2024-11-08 11:41:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-08 11:41:45,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:45,502 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:45,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:41:45,503 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:45,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1561562149, now seen corresponding path program 1 times [2024-11-08 11:41:45,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:45,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898338154] [2024-11-08 11:41:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:45,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-08 11:41:45,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898338154] [2024-11-08 11:41:45,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898338154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:45,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:45,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:45,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2511759] [2024-11-08 11:41:45,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:45,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:45,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:45,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:45,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:45,749 INFO L87 Difference]: Start difference. First operand 5234 states and 6064 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:47,463 INFO L93 Difference]: Finished difference Result 12593 states and 14783 transitions. [2024-11-08 11:41:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:47,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 282 [2024-11-08 11:41:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:47,487 INFO L225 Difference]: With dead ends: 12593 [2024-11-08 11:41:47,488 INFO L226 Difference]: Without dead ends: 6936 [2024-11-08 11:41:47,494 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 [2024-11-08 11:41:47,495 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 383 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:47,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 847 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:41:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2024-11-08 11:41:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 6936. [2024-11-08 11:41:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6936 states, 6935 states have (on average 1.1322278298485942) internal successors, (7852), 6935 states have internal predecessors, (7852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6936 states to 6936 states and 7852 transitions. [2024-11-08 11:41:47,625 INFO L78 Accepts]: Start accepts. Automaton has 6936 states and 7852 transitions. Word has length 282 [2024-11-08 11:41:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:47,625 INFO L471 AbstractCegarLoop]: Abstraction has 6936 states and 7852 transitions. [2024-11-08 11:41:47,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:47,626 INFO L276 IsEmpty]: Start isEmpty. Operand 6936 states and 7852 transitions. [2024-11-08 11:41:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-08 11:41:47,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:47,633 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 11:41:47,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:41:47,633 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:47,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:47,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1048618558, now seen corresponding path program 1 times [2024-11-08 11:41:47,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713737211] [2024-11-08 11:41:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:47,907 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-08 11:41:47,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:47,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713737211] [2024-11-08 11:41:47,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713737211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:47,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:47,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:47,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137018751] [2024-11-08 11:41:47,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:47,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:47,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:47,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:47,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:47,913 INFO L87 Difference]: Start difference. First operand 6936 states and 7852 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:49,562 INFO L93 Difference]: Finished difference Result 17279 states and 19683 transitions. [2024-11-08 11:41:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 322 [2024-11-08 11:41:49,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:49,579 INFO L225 Difference]: With dead ends: 17279 [2024-11-08 11:41:49,579 INFO L226 Difference]: Without dead ends: 9468 [2024-11-08 11:41:49,588 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 [2024-11-08 11:41:49,589 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 495 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:49,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 640 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:41:49,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9468 states. [2024-11-08 11:41:49,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9468 to 9038. [2024-11-08 11:41:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9038 states, 9037 states have (on average 1.1249308398804914) internal successors, (10166), 9037 states have internal predecessors, (10166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 10166 transitions. [2024-11-08 11:41:49,765 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 10166 transitions. Word has length 322 [2024-11-08 11:41:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:49,766 INFO L471 AbstractCegarLoop]: Abstraction has 9038 states and 10166 transitions. [2024-11-08 11:41:49,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 10166 transitions. [2024-11-08 11:41:49,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-08 11:41:49,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:49,775 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:49,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:41:49,776 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:49,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:49,776 INFO L85 PathProgramCache]: Analyzing trace with hash -474723312, now seen corresponding path program 1 times [2024-11-08 11:41:49,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:49,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925894344] [2024-11-08 11:41:49,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:49,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:50,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:50,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925894344] [2024-11-08 11:41:50,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925894344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:50,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:50,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:50,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897923965] [2024-11-08 11:41:50,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:50,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:41:50,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:50,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:41:50,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:41:50,209 INFO L87 Difference]: Start difference. First operand 9038 states and 10166 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:52,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:52,627 INFO L93 Difference]: Finished difference Result 26188 states and 29347 transitions. [2024-11-08 11:41:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:41:52,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 389 [2024-11-08 11:41:52,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:52,661 INFO L225 Difference]: With dead ends: 26188 [2024-11-08 11:41:52,662 INFO L226 Difference]: Without dead ends: 16727 [2024-11-08 11:41:52,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:41:52,675 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 519 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:52,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 371 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 11:41:52,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16727 states. [2024-11-08 11:41:52,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16727 to 16283. [2024-11-08 11:41:52,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16283 states, 16282 states have (on average 1.110920034393809) internal successors, (18088), 16282 states have internal predecessors, (18088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16283 states to 16283 states and 18088 transitions. [2024-11-08 11:41:52,878 INFO L78 Accepts]: Start accepts. Automaton has 16283 states and 18088 transitions. Word has length 389 [2024-11-08 11:41:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:52,880 INFO L471 AbstractCegarLoop]: Abstraction has 16283 states and 18088 transitions. [2024-11-08 11:41:52,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 16283 states and 18088 transitions. [2024-11-08 11:41:52,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-08 11:41:52,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:52,890 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:52,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:41:52,891 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:52,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2212298, now seen corresponding path program 1 times [2024-11-08 11:41:52,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:52,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301811619] [2024-11-08 11:41:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:41:53,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:53,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301811619] [2024-11-08 11:41:53,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301811619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:53,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:53,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:53,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314924070] [2024-11-08 11:41:53,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:53,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:53,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:53,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:53,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:53,340 INFO L87 Difference]: Start difference. First operand 16283 states and 18088 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:54,748 INFO L93 Difference]: Finished difference Result 38973 states and 43494 transitions. [2024-11-08 11:41:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:54,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 393 [2024-11-08 11:41:54,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:54,782 INFO L225 Difference]: With dead ends: 38973 [2024-11-08 11:41:54,782 INFO L226 Difference]: Without dead ends: 22692 [2024-11-08 11:41:54,802 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 [2024-11-08 11:41:54,803 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 349 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:54,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 654 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:41:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22692 states. [2024-11-08 11:41:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22692 to 21823. [2024-11-08 11:41:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21823 states, 21822 states have (on average 1.119420768032261) internal successors, (24428), 21822 states have internal predecessors, (24428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21823 states to 21823 states and 24428 transitions. [2024-11-08 11:41:55,161 INFO L78 Accepts]: Start accepts. Automaton has 21823 states and 24428 transitions. Word has length 393 [2024-11-08 11:41:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:55,162 INFO L471 AbstractCegarLoop]: Abstraction has 21823 states and 24428 transitions. [2024-11-08 11:41:55,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:55,163 INFO L276 IsEmpty]: Start isEmpty. Operand 21823 states and 24428 transitions. [2024-11-08 11:41:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-11-08 11:41:55,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:55,178 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:41:55,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:41:55,178 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:55,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1334255484, now seen corresponding path program 1 times [2024-11-08 11:41:55,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:55,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599761833] [2024-11-08 11:41:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:55,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:41:55,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:55,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599761833] [2024-11-08 11:41:55,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599761833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:55,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:55,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:55,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481057983] [2024-11-08 11:41:55,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:55,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:55,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:55,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:55,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:55,894 INFO L87 Difference]: Start difference. First operand 21823 states and 24428 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:57,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:57,273 INFO L93 Difference]: Finished difference Result 49189 states and 55550 transitions. [2024-11-08 11:41:57,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:57,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 436 [2024-11-08 11:41:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:57,311 INFO L225 Difference]: With dead ends: 49189 [2024-11-08 11:41:57,311 INFO L226 Difference]: Without dead ends: 26943 [2024-11-08 11:41:57,332 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 [2024-11-08 11:41:57,333 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 313 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:57,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 761 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:41:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26943 states. [2024-11-08 11:41:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26943 to 26936. [2024-11-08 11:41:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26936 states, 26935 states have (on average 1.1173937256357898) internal successors, (30097), 26935 states have internal predecessors, (30097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26936 states to 26936 states and 30097 transitions. [2024-11-08 11:41:57,632 INFO L78 Accepts]: Start accepts. Automaton has 26936 states and 30097 transitions. Word has length 436 [2024-11-08 11:41:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:57,633 INFO L471 AbstractCegarLoop]: Abstraction has 26936 states and 30097 transitions. [2024-11-08 11:41:57,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 26936 states and 30097 transitions. [2024-11-08 11:41:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-08 11:41:57,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:57,648 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:57,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:41:57,649 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:57,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:57,649 INFO L85 PathProgramCache]: Analyzing trace with hash -344888426, now seen corresponding path program 1 times [2024-11-08 11:41:57,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:57,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141393071] [2024-11-08 11:41:57,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:57,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:57,973 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:41:57,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:57,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141393071] [2024-11-08 11:41:57,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141393071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:57,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:57,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:57,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964972991] [2024-11-08 11:41:57,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:57,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:57,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:57,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:57,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:57,976 INFO L87 Difference]: Start difference. First operand 26936 states and 30097 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:59,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:59,499 INFO L93 Difference]: Finished difference Result 64094 states and 71471 transitions. [2024-11-08 11:41:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:59,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 449 [2024-11-08 11:41:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:59,545 INFO L225 Difference]: With dead ends: 64094 [2024-11-08 11:41:59,545 INFO L226 Difference]: Without dead ends: 37160 [2024-11-08 11:41:59,569 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 [2024-11-08 11:41:59,570 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 352 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:59,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 153 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:41:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37160 states. [2024-11-08 11:41:59,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37160 to 29046. [2024-11-08 11:41:59,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29046 states, 29045 states have (on average 1.115751420210019) internal successors, (32407), 29045 states have internal predecessors, (32407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29046 states to 29046 states and 32407 transitions. [2024-11-08 11:42:00,038 INFO L78 Accepts]: Start accepts. Automaton has 29046 states and 32407 transitions. Word has length 449 [2024-11-08 11:42:00,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:00,039 INFO L471 AbstractCegarLoop]: Abstraction has 29046 states and 32407 transitions. [2024-11-08 11:42:00,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 29046 states and 32407 transitions. [2024-11-08 11:42:00,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-08 11:42:00,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:00,057 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 11:42:00,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 11:42:00,057 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:00,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2118200343, now seen corresponding path program 1 times [2024-11-08 11:42:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646851366] [2024-11-08 11:42:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:00,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 11:42:00,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:00,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646851366] [2024-11-08 11:42:00,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646851366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:00,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:00,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064573190] [2024-11-08 11:42:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:00,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:00,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:00,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:00,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:00,518 INFO L87 Difference]: Start difference. First operand 29046 states and 32407 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:02,094 INFO L93 Difference]: Finished difference Result 67034 states and 74966 transitions. [2024-11-08 11:42:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:02,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 513 [2024-11-08 11:42:02,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:02,137 INFO L225 Difference]: With dead ends: 67034 [2024-11-08 11:42:02,137 INFO L226 Difference]: Without dead ends: 37990 [2024-11-08 11:42:02,165 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 [2024-11-08 11:42:02,166 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 326 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:02,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 344 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:42:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37990 states. [2024-11-08 11:42:02,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37990 to 33301. [2024-11-08 11:42:02,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33301 states, 33300 states have (on average 1.10012012012012) internal successors, (36634), 33300 states have internal predecessors, (36634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:02,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33301 states to 33301 states and 36634 transitions. [2024-11-08 11:42:02,594 INFO L78 Accepts]: Start accepts. Automaton has 33301 states and 36634 transitions. Word has length 513 [2024-11-08 11:42:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:02,594 INFO L471 AbstractCegarLoop]: Abstraction has 33301 states and 36634 transitions. [2024-11-08 11:42:02,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:02,595 INFO L276 IsEmpty]: Start isEmpty. Operand 33301 states and 36634 transitions. [2024-11-08 11:42:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2024-11-08 11:42:02,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:02,612 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:02,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:42:02,613 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:02,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:02,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1612744574, now seen corresponding path program 1 times [2024-11-08 11:42:02,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:02,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814927632] [2024-11-08 11:42:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:02,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 610 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-08 11:42:03,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:03,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814927632] [2024-11-08 11:42:03,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814927632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:03,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:03,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:03,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139009730] [2024-11-08 11:42:03,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:03,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:03,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:03,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:03,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:03,161 INFO L87 Difference]: Start difference. First operand 33301 states and 36634 transitions. Second operand has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:04,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:04,632 INFO L93 Difference]: Finished difference Result 75546 states and 83066 transitions. [2024-11-08 11:42:04,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:04,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 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 567 [2024-11-08 11:42:04,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:04,679 INFO L225 Difference]: With dead ends: 75546 [2024-11-08 11:42:04,679 INFO L226 Difference]: Without dead ends: 42247 [2024-11-08 11:42:04,701 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 [2024-11-08 11:42:04,701 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 246 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:04,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 783 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:42:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42247 states. [2024-11-08 11:42:05,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42247 to 40536. [2024-11-08 11:42:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40536 states, 40535 states have (on average 1.0932527445417541) internal successors, (44315), 40535 states have internal predecessors, (44315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40536 states to 40536 states and 44315 transitions. [2024-11-08 11:42:05,229 INFO L78 Accepts]: Start accepts. Automaton has 40536 states and 44315 transitions. Word has length 567 [2024-11-08 11:42:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:05,229 INFO L471 AbstractCegarLoop]: Abstraction has 40536 states and 44315 transitions. [2024-11-08 11:42:05,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand 40536 states and 44315 transitions. [2024-11-08 11:42:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-11-08 11:42:05,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:05,246 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:05,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:42:05,247 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:05,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1259748942, now seen corresponding path program 1 times [2024-11-08 11:42:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:05,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278505557] [2024-11-08 11:42:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:05,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-08 11:42:05,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:05,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278505557] [2024-11-08 11:42:05,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278505557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:05,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:05,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:05,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251849519] [2024-11-08 11:42:05,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:05,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:05,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:05,876 INFO L87 Difference]: Start difference. First operand 40536 states and 44315 transitions. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:07,252 INFO L93 Difference]: Finished difference Result 92571 states and 101579 transitions. [2024-11-08 11:42:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:07,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 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 598 [2024-11-08 11:42:07,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:07,427 INFO L225 Difference]: With dead ends: 92571 [2024-11-08 11:42:07,428 INFO L226 Difference]: Without dead ends: 51186 [2024-11-08 11:42:07,463 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 [2024-11-08 11:42:07,464 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 312 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:07,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 617 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51186 states. [2024-11-08 11:42:08,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51186 to 51175. [2024-11-08 11:42:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51175 states, 51174 states have (on average 1.0936999257435416) internal successors, (55969), 51174 states have internal predecessors, (55969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:08,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51175 states to 51175 states and 55969 transitions. [2024-11-08 11:42:08,225 INFO L78 Accepts]: Start accepts. Automaton has 51175 states and 55969 transitions. Word has length 598 [2024-11-08 11:42:08,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:08,226 INFO L471 AbstractCegarLoop]: Abstraction has 51175 states and 55969 transitions. [2024-11-08 11:42:08,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:08,226 INFO L276 IsEmpty]: Start isEmpty. Operand 51175 states and 55969 transitions. [2024-11-08 11:42:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-11-08 11:42:08,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:08,246 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:42:08,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:42:08,247 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:08,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:08,247 INFO L85 PathProgramCache]: Analyzing trace with hash 378655293, now seen corresponding path program 1 times [2024-11-08 11:42:08,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:08,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353050361] [2024-11-08 11:42:08,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:08,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-08 11:42:08,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:08,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353050361] [2024-11-08 11:42:08,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353050361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:08,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:08,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:08,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313239475] [2024-11-08 11:42:08,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:08,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:08,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:08,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:08,774 INFO L87 Difference]: Start difference. First operand 51175 states and 55969 transitions. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:10,192 INFO L93 Difference]: Finished difference Result 106181 states and 116205 transitions. [2024-11-08 11:42:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 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 665 [2024-11-08 11:42:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:10,249 INFO L225 Difference]: With dead ends: 106181 [2024-11-08 11:42:10,249 INFO L226 Difference]: Without dead ends: 55008 [2024-11-08 11:42:10,283 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 [2024-11-08 11:42:10,284 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 486 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:10,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 688 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55008 states. [2024-11-08 11:42:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55008 to 54999. [2024-11-08 11:42:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54999 states, 54998 states have (on average 1.0856394777991927) internal successors, (59708), 54998 states have internal predecessors, (59708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54999 states to 54999 states and 59708 transitions. [2024-11-08 11:42:10,914 INFO L78 Accepts]: Start accepts. Automaton has 54999 states and 59708 transitions. Word has length 665 [2024-11-08 11:42:10,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:10,914 INFO L471 AbstractCegarLoop]: Abstraction has 54999 states and 59708 transitions. [2024-11-08 11:42:10,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:10,914 INFO L276 IsEmpty]: Start isEmpty. Operand 54999 states and 59708 transitions. [2024-11-08 11:42:10,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-08 11:42:10,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:10,931 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:10,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:42:10,932 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:10,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:10,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1764057692, now seen corresponding path program 1 times [2024-11-08 11:42:10,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:10,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094955410] [2024-11-08 11:42:10,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:10,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-08 11:42:12,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:12,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094955410] [2024-11-08 11:42:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094955410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:12,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:12,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:42:12,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676404714] [2024-11-08 11:42:12,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:12,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:12,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:12,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:12,076 INFO L87 Difference]: Start difference. First operand 54999 states and 59708 transitions. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:14,293 INFO L93 Difference]: Finished difference Result 127464 states and 138322 transitions. [2024-11-08 11:42:14,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:14,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 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 677 [2024-11-08 11:42:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:14,364 INFO L225 Difference]: With dead ends: 127464 [2024-11-08 11:42:14,364 INFO L226 Difference]: Without dead ends: 72467 [2024-11-08 11:42:14,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:14,389 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 814 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:14,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 180 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:42:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72467 states. [2024-11-08 11:42:15,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72467 to 70328. [2024-11-08 11:42:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70328 states, 70327 states have (on average 1.0841213189813301) internal successors, (76243), 70327 states have internal predecessors, (76243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70328 states to 70328 states and 76243 transitions. [2024-11-08 11:42:15,272 INFO L78 Accepts]: Start accepts. Automaton has 70328 states and 76243 transitions. Word has length 677 [2024-11-08 11:42:15,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:15,272 INFO L471 AbstractCegarLoop]: Abstraction has 70328 states and 76243 transitions. [2024-11-08 11:42:15,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 70328 states and 76243 transitions. [2024-11-08 11:42:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-08 11:42:15,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:15,301 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:15,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 11:42:15,301 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:15,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:15,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1637063526, now seen corresponding path program 1 times [2024-11-08 11:42:15,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:15,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933913769] [2024-11-08 11:42:15,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:15,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 893 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-08 11:42:15,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:15,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933913769] [2024-11-08 11:42:15,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933913769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:15,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:15,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:15,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890933751] [2024-11-08 11:42:15,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:15,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:15,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:15,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:15,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:15,969 INFO L87 Difference]: Start difference. First operand 70328 states and 76243 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:17,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:17,722 INFO L93 Difference]: Finished difference Result 152577 states and 165681 transitions. [2024-11-08 11:42:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:17,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 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 696 [2024-11-08 11:42:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:17,809 INFO L225 Difference]: With dead ends: 152577 [2024-11-08 11:42:17,809 INFO L226 Difference]: Without dead ends: 82251 [2024-11-08 11:42:17,842 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 [2024-11-08 11:42:17,843 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 383 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:17,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 298 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:42:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82251 states. [2024-11-08 11:42:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82251 to 80540. [2024-11-08 11:42:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80540 states, 80539 states have (on average 1.079626019692323) internal successors, (86952), 80539 states have internal predecessors, (86952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80540 states to 80540 states and 86952 transitions. [2024-11-08 11:42:18,686 INFO L78 Accepts]: Start accepts. Automaton has 80540 states and 86952 transitions. Word has length 696 [2024-11-08 11:42:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:18,687 INFO L471 AbstractCegarLoop]: Abstraction has 80540 states and 86952 transitions. [2024-11-08 11:42:18,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 80540 states and 86952 transitions. [2024-11-08 11:42:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2024-11-08 11:42:18,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:18,725 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:18,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:42:18,726 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:18,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1592193129, now seen corresponding path program 1 times [2024-11-08 11:42:18,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:18,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976383684] [2024-11-08 11:42:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:18,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-08 11:42:19,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:19,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976383684] [2024-11-08 11:42:19,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976383684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:19,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:19,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:19,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386581423] [2024-11-08 11:42:19,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:19,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:19,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:19,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:19,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:19,572 INFO L87 Difference]: Start difference. First operand 80540 states and 86952 transitions. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:21,136 INFO L93 Difference]: Finished difference Result 159794 states and 172448 transitions. [2024-11-08 11:42:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 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 749 [2024-11-08 11:42:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:21,223 INFO L225 Difference]: With dead ends: 159794 [2024-11-08 11:42:21,224 INFO L226 Difference]: Without dead ends: 79254 [2024-11-08 11:42:21,277 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 [2024-11-08 11:42:21,277 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 335 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:21,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 683 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:21,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79254 states. [2024-11-08 11:42:22,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79254 to 77977. [2024-11-08 11:42:22,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77977 states, 77976 states have (on average 1.0655586334256695) internal successors, (83088), 77976 states have internal predecessors, (83088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:22,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77977 states to 77977 states and 83088 transitions. [2024-11-08 11:42:22,197 INFO L78 Accepts]: Start accepts. Automaton has 77977 states and 83088 transitions. Word has length 749 [2024-11-08 11:42:22,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:22,197 INFO L471 AbstractCegarLoop]: Abstraction has 77977 states and 83088 transitions. [2024-11-08 11:42:22,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:22,198 INFO L276 IsEmpty]: Start isEmpty. Operand 77977 states and 83088 transitions. [2024-11-08 11:42:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2024-11-08 11:42:22,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:22,225 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:42:22,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 11:42:22,225 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:22,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:22,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1256177813, now seen corresponding path program 1 times [2024-11-08 11:42:22,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:22,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334626343] [2024-11-08 11:42:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:22,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 757 proven. 82 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-11-08 11:42:23,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:23,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334626343] [2024-11-08 11:42:23,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334626343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:23,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575048696] [2024-11-08 11:42:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:23,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:42:23,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:42:23,359 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) [2024-11-08 11:42:23,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:42:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:23,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 11:42:23,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:42:24,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 885 proven. 160 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-08 11:42:24,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:42:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 1045 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-08 11:42:24,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575048696] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:24,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:42:24,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 4] total 7 [2024-11-08 11:42:24,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167086088] [2024-11-08 11:42:24,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:24,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 11:42:24,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:24,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 11:42:24,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:42:24,603 INFO L87 Difference]: Start difference. First operand 77977 states and 83088 transitions. Second operand has 5 states, 5 states have (on average 111.4) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:27,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:27,939 INFO L93 Difference]: Finished difference Result 187928 states and 200826 transitions. [2024-11-08 11:42:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 11:42:27,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 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 758 [2024-11-08 11:42:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:28,071 INFO L225 Difference]: With dead ends: 187928 [2024-11-08 11:42:28,072 INFO L226 Difference]: Without dead ends: 109528 [2024-11-08 11:42:28,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1517 GetRequests, 1511 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:42:28,127 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 1126 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:28,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 193 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 11:42:28,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109528 states. [2024-11-08 11:42:29,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109528 to 102719. [2024-11-08 11:42:29,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102719 states, 102718 states have (on average 1.0665121984462314) internal successors, (109550), 102718 states have internal predecessors, (109550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:29,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102719 states to 102719 states and 109550 transitions. [2024-11-08 11:42:29,433 INFO L78 Accepts]: Start accepts. Automaton has 102719 states and 109550 transitions. Word has length 758 [2024-11-08 11:42:29,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:29,434 INFO L471 AbstractCegarLoop]: Abstraction has 102719 states and 109550 transitions. [2024-11-08 11:42:29,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:29,434 INFO L276 IsEmpty]: Start isEmpty. Operand 102719 states and 109550 transitions. [2024-11-08 11:42:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2024-11-08 11:42:29,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:29,902 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:29,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 11:42:30,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:42:30,104 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:30,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:30,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1804847060, now seen corresponding path program 1 times [2024-11-08 11:42:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:30,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178181022] [2024-11-08 11:42:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:30,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 1088 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-11-08 11:42:30,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178181022] [2024-11-08 11:42:30,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178181022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:30,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:30,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:30,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196786476] [2024-11-08 11:42:30,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:30,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:30,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:30,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:30,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:30,643 INFO L87 Difference]: Start difference. First operand 102719 states and 109550 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:32,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:32,523 INFO L93 Difference]: Finished difference Result 218683 states and 233273 transitions. [2024-11-08 11:42:32,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:32,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 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 784 [2024-11-08 11:42:32,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:32,653 INFO L225 Difference]: With dead ends: 218683 [2024-11-08 11:42:32,653 INFO L226 Difference]: Without dead ends: 115966 [2024-11-08 11:42:32,714 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 [2024-11-08 11:42:32,715 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 270 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:32,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 253 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:42:32,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115966 states. [2024-11-08 11:42:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115966 to 106985. [2024-11-08 11:42:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106985 states, 106984 states have (on average 1.0664678830479324) internal successors, (114095), 106984 states have internal predecessors, (114095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106985 states to 106985 states and 114095 transitions. [2024-11-08 11:42:34,340 INFO L78 Accepts]: Start accepts. Automaton has 106985 states and 114095 transitions. Word has length 784 [2024-11-08 11:42:34,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:34,341 INFO L471 AbstractCegarLoop]: Abstraction has 106985 states and 114095 transitions. [2024-11-08 11:42:34,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 106985 states and 114095 transitions. [2024-11-08 11:42:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2024-11-08 11:42:34,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:34,385 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 11:42:34,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 11:42:34,386 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:34,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1725455319, now seen corresponding path program 1 times [2024-11-08 11:42:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:34,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82380774] [2024-11-08 11:42:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 1209 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 11:42:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82380774] [2024-11-08 11:42:35,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82380774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:35,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:35,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330809907] [2024-11-08 11:42:35,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:35,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:35,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:35,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:35,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:35,122 INFO L87 Difference]: Start difference. First operand 106985 states and 114095 transitions. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:37,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:37,271 INFO L93 Difference]: Finished difference Result 222079 states and 236720 transitions. [2024-11-08 11:42:37,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:37,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 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 802 [2024-11-08 11:42:37,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:37,408 INFO L225 Difference]: With dead ends: 222079 [2024-11-08 11:42:37,408 INFO L226 Difference]: Without dead ends: 115096 [2024-11-08 11:42:37,476 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 [2024-11-08 11:42:37,477 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 430 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:37,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 221 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:42:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115096 states. [2024-11-08 11:42:39,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115096 to 107839. [2024-11-08 11:42:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107839 states, 107838 states have (on average 1.0647730855542572) internal successors, (114823), 107838 states have internal predecessors, (114823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:39,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107839 states to 107839 states and 114823 transitions. [2024-11-08 11:42:39,272 INFO L78 Accepts]: Start accepts. Automaton has 107839 states and 114823 transitions. Word has length 802 [2024-11-08 11:42:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:39,272 INFO L471 AbstractCegarLoop]: Abstraction has 107839 states and 114823 transitions. [2024-11-08 11:42:39,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 107839 states and 114823 transitions. [2024-11-08 11:42:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2024-11-08 11:42:39,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:39,300 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:39,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 11:42:39,300 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:39,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:39,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2052133367, now seen corresponding path program 1 times [2024-11-08 11:42:39,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:39,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718009668] [2024-11-08 11:42:39,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1662 backedges. 1152 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-08 11:42:40,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:40,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718009668] [2024-11-08 11:42:40,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718009668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:40,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:40,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:40,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204519488] [2024-11-08 11:42:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:40,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:40,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:40,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:40,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:40,063 INFO L87 Difference]: Start difference. First operand 107839 states and 114823 transitions. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)