./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/psyco/psyco_net_1.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/psyco/psyco_net_1.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 de2f4457e683c9057510f44fdcfcada297661f8afdeccfe707ab5df57f434b62 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:55:52,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:55:52,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:55:52,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:55:52,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:55:52,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:55:52,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:55:52,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:55:52,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:55:52,748 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:55:52,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:55:52,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:55:52,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:55:52,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:55:52,752 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:55:52,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:55:52,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:55:52,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:55:52,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:55:52,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:55:52,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:55:52,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:55:52,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:55:52,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:55:52,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:55:52,759 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:55:52,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:55:52,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:55:52,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:55:52,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:55:52,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:55:52,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:55:52,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:55:52,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:55:52,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:55:52,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:55:52,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:55:52,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:55:52,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:55:52,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:55:52,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:55:52,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:55:52,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de2f4457e683c9057510f44fdcfcada297661f8afdeccfe707ab5df57f434b62 [2024-11-08 11:55:53,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:55:53,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:55:53,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:55:53,048 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:55:53,048 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:55:53,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_net_1.c [2024-11-08 11:55:54,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:55:55,448 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:55:55,449 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_net_1.c [2024-11-08 11:55:55,562 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e4f94126/527daa0c30d04395acd30066bb15d8ad/FLAG6153acb6d [2024-11-08 11:55:55,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e4f94126/527daa0c30d04395acd30066bb15d8ad [2024-11-08 11:55:55,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:55:55,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:55:55,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:55:55,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:55:55,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:55:55,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:55:55" (1/1) ... [2024-11-08 11:55:55,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fb3073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:55, skipping insertion in model container [2024-11-08 11:55:55,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:55:55" (1/1) ... [2024-11-08 11:55:55,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:55:57,460 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/psyco/psyco_net_1.c[2349407,2349420] [2024-11-08 11:55:57,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:55:57,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:55:58,306 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/psyco/psyco_net_1.c[2349407,2349420] [2024-11-08 11:55:58,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:55:58,365 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:55:58,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58 WrapperNode [2024-11-08 11:55:58,366 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:55:58,367 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:55:58,367 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:55:58,367 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:55:58,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:55:58,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:55:59,516 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53158 [2024-11-08 11:55:59,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:55:59,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:55:59,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:55:59,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:55:59,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:55:59,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:55:59,713 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:55:59,936 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 11:55:59,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:55:59,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:56:00,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:56:00,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:56:00,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:56:00,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:56:00,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:56:00,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:56:00,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:56:00,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:56:00,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (1/1) ... [2024-11-08 11:56:00,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:56:00,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:56:00,799 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 11:56:00,804 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 11:56:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:56:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:56:00,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:56:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:56:01,412 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:56:01,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:56:15,021 INFO L? ?]: Removed 10714 outVars from TransFormulas that were not future-live. [2024-11-08 11:56:15,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:56:15,147 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:56:15,148 INFO L316 CfgBuilder]: Removed 1130 assume(true) statements. [2024-11-08 11:56:15,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:15 BoogieIcfgContainer [2024-11-08 11:56:15,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:56:15,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:56:15,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:56:15,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:56:15,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:55:55" (1/3) ... [2024-11-08 11:56:15,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21deff9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:56:15, skipping insertion in model container [2024-11-08 11:56:15,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:55:58" (2/3) ... [2024-11-08 11:56:15,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21deff9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:56:15, skipping insertion in model container [2024-11-08 11:56:15,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:56:15" (3/3) ... [2024-11-08 11:56:15,160 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_net_1.c [2024-11-08 11:56:15,177 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:56:15,177 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:56:15,453 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:56:15,460 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;@33fc368c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:56:15,461 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:56:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 9211 states, 9209 states have (on average 1.999457052883049) internal successors, (18413), 9210 states have internal predecessors, (18413), 0 states have call successors, (0), 0 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 11:56:15,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 11:56:15,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:15,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:56:15,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:15,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:15,506 INFO L85 PathProgramCache]: Analyzing trace with hash 352619045, now seen corresponding path program 1 times [2024-11-08 11:56:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227631346] [2024-11-08 11:56:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:15,846 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 11:56:15,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227631346] [2024-11-08 11:56:15,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227631346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:15,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:15,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:56:15,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324983609] [2024-11-08 11:56:15,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:15,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 11:56:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:15,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 11:56:15,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 11:56:15,904 INFO L87 Difference]: Start difference. First operand has 9211 states, 9209 states have (on average 1.999457052883049) internal successors, (18413), 9210 states have internal predecessors, (18413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 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 11:56:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:16,354 INFO L93 Difference]: Finished difference Result 17698 states and 35380 transitions. [2024-11-08 11:56:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 11:56:16,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2024-11-08 11:56:16,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:16,415 INFO L225 Difference]: With dead ends: 17698 [2024-11-08 11:56:16,415 INFO L226 Difference]: Without dead ends: 8280 [2024-11-08 11:56:16,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 11:56:16,438 INFO L432 NwaCegarLoop]: 14147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14147 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:16,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 11:56:16,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2024-11-08 11:56:16,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 8280. [2024-11-08 11:56:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8280 states, 8279 states have (on average 1.5698755888392317) internal successors, (12997), 8279 states have internal predecessors, (12997), 0 states have call successors, (0), 0 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 11:56:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8280 states to 8280 states and 12997 transitions. [2024-11-08 11:56:16,670 INFO L78 Accepts]: Start accepts. Automaton has 8280 states and 12997 transitions. Word has length 9 [2024-11-08 11:56:16,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:16,670 INFO L471 AbstractCegarLoop]: Abstraction has 8280 states and 12997 transitions. [2024-11-08 11:56:16,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 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 11:56:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 8280 states and 12997 transitions. [2024-11-08 11:56:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 11:56:16,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:16,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:56:16,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:56:16,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:16,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:16,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1422650027, now seen corresponding path program 1 times [2024-11-08 11:56:16,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:16,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023491194] [2024-11-08 11:56:16,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:16,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:16,852 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 11:56:16,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:16,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023491194] [2024-11-08 11:56:16,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023491194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:16,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:16,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:16,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145349874] [2024-11-08 11:56:16,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:16,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:16,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:16,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:16,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:16,856 INFO L87 Difference]: Start difference. First operand 8280 states and 12997 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 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 11:56:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:18,608 INFO L93 Difference]: Finished difference Result 16561 states and 25996 transitions. [2024-11-08 11:56:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:18,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-08 11:56:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:18,639 INFO L225 Difference]: With dead ends: 16561 [2024-11-08 11:56:18,639 INFO L226 Difference]: Without dead ends: 8283 [2024-11-08 11:56:18,651 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 11:56:18,652 INFO L432 NwaCegarLoop]: 12996 mSDtfsCounter, 4 mSDsluCounter, 11520 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24516 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:18,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24516 Invalid, 1474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:56:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2024-11-08 11:56:18,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 8283. [2024-11-08 11:56:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8283 states, 8282 states have (on average 1.569669162038155) internal successors, (13000), 8282 states have internal predecessors, (13000), 0 states have call successors, (0), 0 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 11:56:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 13000 transitions. [2024-11-08 11:56:18,806 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 13000 transitions. Word has length 10 [2024-11-08 11:56:18,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:18,806 INFO L471 AbstractCegarLoop]: Abstraction has 8283 states and 13000 transitions. [2024-11-08 11:56:18,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 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 11:56:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 13000 transitions. [2024-11-08 11:56:18,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 11:56:18,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:18,808 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:56:18,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:56:18,808 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:18,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:18,809 INFO L85 PathProgramCache]: Analyzing trace with hash 658080264, now seen corresponding path program 1 times [2024-11-08 11:56:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407044479] [2024-11-08 11:56:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:56:18,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:18,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407044479] [2024-11-08 11:56:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407044479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:18,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:18,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:18,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375873418] [2024-11-08 11:56:18,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:18,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:18,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:18,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:18,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:18,948 INFO L87 Difference]: Start difference. First operand 8283 states and 13000 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:56:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:20,597 INFO L93 Difference]: Finished difference Result 16569 states and 26005 transitions. [2024-11-08 11:56:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:20,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 11:56:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:20,639 INFO L225 Difference]: With dead ends: 16569 [2024-11-08 11:56:20,639 INFO L226 Difference]: Without dead ends: 8289 [2024-11-08 11:56:20,655 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 11:56:20,656 INFO L432 NwaCegarLoop]: 12995 mSDtfsCounter, 329 mSDsluCounter, 11197 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 24192 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:20,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 24192 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:56:20,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8289 states. [2024-11-08 11:56:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8289 to 8287. [2024-11-08 11:56:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8287 states, 8286 states have (on average 1.5693941588221096) internal successors, (13004), 8286 states have internal predecessors, (13004), 0 states have call successors, (0), 0 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 11:56:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8287 states to 8287 states and 13004 transitions. [2024-11-08 11:56:20,814 INFO L78 Accepts]: Start accepts. Automaton has 8287 states and 13004 transitions. Word has length 15 [2024-11-08 11:56:20,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:20,814 INFO L471 AbstractCegarLoop]: Abstraction has 8287 states and 13004 transitions. [2024-11-08 11:56:20,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:56:20,814 INFO L276 IsEmpty]: Start isEmpty. Operand 8287 states and 13004 transitions. [2024-11-08 11:56:20,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 11:56:20,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:20,816 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:56:20,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:56:20,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:20,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:20,817 INFO L85 PathProgramCache]: Analyzing trace with hash 505082677, now seen corresponding path program 1 times [2024-11-08 11:56:20,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:20,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152346153] [2024-11-08 11:56:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:20,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:56:20,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:20,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152346153] [2024-11-08 11:56:20,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152346153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:20,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:20,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:20,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889048446] [2024-11-08 11:56:20,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:20,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:20,911 INFO L87 Difference]: Start difference. First operand 8287 states and 13004 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 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 11:56:23,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:23,776 INFO L93 Difference]: Finished difference Result 16493 states and 25886 transitions. [2024-11-08 11:56:23,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:23,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-11-08 11:56:23,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:23,797 INFO L225 Difference]: With dead ends: 16493 [2024-11-08 11:56:23,797 INFO L226 Difference]: Without dead ends: 8167 [2024-11-08 11:56:23,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:23,806 INFO L432 NwaCegarLoop]: 9998 mSDtfsCounter, 10370 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 3164 mSolverCounterSat, 1749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10370 SdHoareTripleChecker+Valid, 10000 SdHoareTripleChecker+Invalid, 4913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1749 IncrementalHoareTripleChecker+Valid, 3164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:23,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10370 Valid, 10000 Invalid, 4913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1749 Valid, 3164 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 11:56:23,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8167 states. [2024-11-08 11:56:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8167 to 8165. [2024-11-08 11:56:23,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8165 states, 8164 states have (on average 1.5165360117589417) internal successors, (12381), 8164 states have internal predecessors, (12381), 0 states have call successors, (0), 0 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 11:56:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 12381 transitions. [2024-11-08 11:56:23,973 INFO L78 Accepts]: Start accepts. Automaton has 8165 states and 12381 transitions. Word has length 19 [2024-11-08 11:56:23,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:23,974 INFO L471 AbstractCegarLoop]: Abstraction has 8165 states and 12381 transitions. [2024-11-08 11:56:23,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 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 11:56:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand 8165 states and 12381 transitions. [2024-11-08 11:56:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 11:56:23,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:23,976 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:56:23,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:56:23,976 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:23,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:23,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1597993323, now seen corresponding path program 1 times [2024-11-08 11:56:23,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:23,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840686779] [2024-11-08 11:56:23,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:23,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:56:24,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:24,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840686779] [2024-11-08 11:56:24,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840686779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:24,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:24,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245699550] [2024-11-08 11:56:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:24,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:24,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:24,073 INFO L87 Difference]: Start difference. First operand 8165 states and 12381 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:56:26,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:26,811 INFO L93 Difference]: Finished difference Result 24489 states and 37137 transitions. [2024-11-08 11:56:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-08 11:56:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:26,860 INFO L225 Difference]: With dead ends: 24489 [2024-11-08 11:56:26,861 INFO L226 Difference]: Without dead ends: 16277 [2024-11-08 11:56:26,875 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 11:56:26,876 INFO L432 NwaCegarLoop]: 10924 mSDtfsCounter, 10931 mSDsluCounter, 10881 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 1345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10931 SdHoareTripleChecker+Valid, 21805 SdHoareTripleChecker+Invalid, 4238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1345 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:26,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10931 Valid, 21805 Invalid, 4238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1345 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 11:56:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16277 states. [2024-11-08 11:56:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16277 to 14963. [2024-11-08 11:56:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14963 states, 14962 states have (on average 1.5566100788664616) internal successors, (23290), 14962 states have internal predecessors, (23290), 0 states have call successors, (0), 0 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 11:56:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14963 states to 14963 states and 23290 transitions. [2024-11-08 11:56:27,181 INFO L78 Accepts]: Start accepts. Automaton has 14963 states and 23290 transitions. Word has length 23 [2024-11-08 11:56:27,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:27,181 INFO L471 AbstractCegarLoop]: Abstraction has 14963 states and 23290 transitions. [2024-11-08 11:56:27,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:56:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 14963 states and 23290 transitions. [2024-11-08 11:56:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 11:56:27,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:27,183 INFO L215 NwaCegarLoop]: trace histogram [2, 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 11:56:27,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:56:27,183 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:27,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:27,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2046252058, now seen corresponding path program 1 times [2024-11-08 11:56:27,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:27,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297214898] [2024-11-08 11:56:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:56:27,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:27,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297214898] [2024-11-08 11:56:27,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297214898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:27,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:27,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:27,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809246941] [2024-11-08 11:56:27,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:27,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:27,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:27,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:27,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:27,315 INFO L87 Difference]: Start difference. First operand 14963 states and 23290 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 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 11:56:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:31,406 INFO L93 Difference]: Finished difference Result 37763 states and 58560 transitions. [2024-11-08 11:56:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:31,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-08 11:56:31,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:31,455 INFO L225 Difference]: With dead ends: 37763 [2024-11-08 11:56:31,455 INFO L226 Difference]: Without dead ends: 22521 [2024-11-08 11:56:31,477 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 11:56:31,479 INFO L432 NwaCegarLoop]: 10503 mSDtfsCounter, 10112 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 4519 mSolverCounterSat, 1455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10112 SdHoareTripleChecker+Valid, 20132 SdHoareTripleChecker+Invalid, 5974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1455 IncrementalHoareTripleChecker+Valid, 4519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:31,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10112 Valid, 20132 Invalid, 5974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1455 Valid, 4519 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-08 11:56:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2024-11-08 11:56:31,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 21281. [2024-11-08 11:56:31,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21281 states, 21280 states have (on average 1.5518796992481203) internal successors, (33024), 21280 states have internal predecessors, (33024), 0 states have call successors, (0), 0 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 11:56:31,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21281 states to 21281 states and 33024 transitions. [2024-11-08 11:56:31,933 INFO L78 Accepts]: Start accepts. Automaton has 21281 states and 33024 transitions. Word has length 25 [2024-11-08 11:56:31,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:31,933 INFO L471 AbstractCegarLoop]: Abstraction has 21281 states and 33024 transitions. [2024-11-08 11:56:31,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 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 11:56:31,933 INFO L276 IsEmpty]: Start isEmpty. Operand 21281 states and 33024 transitions. [2024-11-08 11:56:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 11:56:31,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:31,937 INFO L215 NwaCegarLoop]: trace histogram [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 11:56:31,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:56:31,938 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:31,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:31,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1701022621, now seen corresponding path program 1 times [2024-11-08 11:56:31,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:31,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189508749] [2024-11-08 11:56:31,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:31,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:56:32,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189508749] [2024-11-08 11:56:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189508749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:32,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:32,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:32,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825627691] [2024-11-08 11:56:32,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:32,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:32,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:32,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:32,103 INFO L87 Difference]: Start difference. First operand 21281 states and 33024 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 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 11:56:37,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:37,346 INFO L93 Difference]: Finished difference Result 63807 states and 99006 transitions. [2024-11-08 11:56:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:37,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 11:56:37,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:37,475 INFO L225 Difference]: With dead ends: 63807 [2024-11-08 11:56:37,475 INFO L226 Difference]: Without dead ends: 42529 [2024-11-08 11:56:37,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:37,509 INFO L432 NwaCegarLoop]: 21590 mSDtfsCounter, 10226 mSDsluCounter, 9573 mSDsCounter, 0 mSdLazyCounter, 6371 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10226 SdHoareTripleChecker+Valid, 31163 SdHoareTripleChecker+Invalid, 7519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 6371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:37,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10226 Valid, 31163 Invalid, 7519 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1148 Valid, 6371 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-08 11:56:37,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42529 states. [2024-11-08 11:56:38,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42529 to 40445. [2024-11-08 11:56:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40445 states, 40444 states have (on average 1.5746464246859855) internal successors, (63685), 40444 states have internal predecessors, (63685), 0 states have call successors, (0), 0 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 11:56:38,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40445 states to 40445 states and 63685 transitions. [2024-11-08 11:56:38,261 INFO L78 Accepts]: Start accepts. Automaton has 40445 states and 63685 transitions. Word has length 30 [2024-11-08 11:56:38,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:38,261 INFO L471 AbstractCegarLoop]: Abstraction has 40445 states and 63685 transitions. [2024-11-08 11:56:38,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 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 11:56:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 40445 states and 63685 transitions. [2024-11-08 11:56:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 11:56:38,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:38,263 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-11-08 11:56:38,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:56:38,264 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:38,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:38,264 INFO L85 PathProgramCache]: Analyzing trace with hash 561792454, now seen corresponding path program 1 times [2024-11-08 11:56:38,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:38,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306770723] [2024-11-08 11:56:38,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:38,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:38,422 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 11:56:38,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:38,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306770723] [2024-11-08 11:56:38,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306770723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:38,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:38,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:38,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033210894] [2024-11-08 11:56:38,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:38,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:38,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:38,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:38,426 INFO L87 Difference]: Start difference. First operand 40445 states and 63685 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 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 11:56:39,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:39,824 INFO L93 Difference]: Finished difference Result 80919 states and 127422 transitions. [2024-11-08 11:56:39,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:39,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 36 [2024-11-08 11:56:39,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:39,889 INFO L225 Difference]: With dead ends: 80919 [2024-11-08 11:56:39,890 INFO L226 Difference]: Without dead ends: 40477 [2024-11-08 11:56:39,928 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 11:56:39,929 INFO L432 NwaCegarLoop]: 12342 mSDtfsCounter, 305 mSDsluCounter, 10699 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 23041 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:39,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 23041 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:56:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40477 states. [2024-11-08 11:56:40,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40477 to 40475. [2024-11-08 11:56:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40475 states, 40474 states have (on average 1.5742204872263676) internal successors, (63715), 40474 states have internal predecessors, (63715), 0 states have call successors, (0), 0 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 11:56:40,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40475 states to 40475 states and 63715 transitions. [2024-11-08 11:56:40,584 INFO L78 Accepts]: Start accepts. Automaton has 40475 states and 63715 transitions. Word has length 36 [2024-11-08 11:56:40,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:40,584 INFO L471 AbstractCegarLoop]: Abstraction has 40475 states and 63715 transitions. [2024-11-08 11:56:40,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 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 11:56:40,585 INFO L276 IsEmpty]: Start isEmpty. Operand 40475 states and 63715 transitions. [2024-11-08 11:56:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 11:56:40,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:40,588 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 11:56:40,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:56:40,589 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:40,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:40,589 INFO L85 PathProgramCache]: Analyzing trace with hash -421428809, now seen corresponding path program 1 times [2024-11-08 11:56:40,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:40,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884285774] [2024-11-08 11:56:40,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:40,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:56:40,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:40,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884285774] [2024-11-08 11:56:40,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884285774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:40,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:40,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:40,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017241658] [2024-11-08 11:56:40,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:40,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:40,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:40,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:40,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:40,698 INFO L87 Difference]: Start difference. First operand 40475 states and 63715 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 11:56:43,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:43,707 INFO L93 Difference]: Finished difference Result 109023 states and 171833 transitions. [2024-11-08 11:56:43,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-08 11:56:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:43,812 INFO L225 Difference]: With dead ends: 109023 [2024-11-08 11:56:43,813 INFO L226 Difference]: Without dead ends: 68501 [2024-11-08 11:56:43,852 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 11:56:43,852 INFO L432 NwaCegarLoop]: 10924 mSDtfsCounter, 10915 mSDsluCounter, 10881 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 1313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10915 SdHoareTripleChecker+Valid, 21805 SdHoareTripleChecker+Invalid, 4142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1313 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:43,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10915 Valid, 21805 Invalid, 4142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1313 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 11:56:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68501 states. [2024-11-08 11:56:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68501 to 66771. [2024-11-08 11:56:44,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66771 states, 66770 states have (on average 1.5851280515201438) internal successors, (105839), 66770 states have internal predecessors, (105839), 0 states have call successors, (0), 0 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 11:56:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66771 states to 66771 states and 105839 transitions. [2024-11-08 11:56:44,638 INFO L78 Accepts]: Start accepts. Automaton has 66771 states and 105839 transitions. Word has length 39 [2024-11-08 11:56:44,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:44,639 INFO L471 AbstractCegarLoop]: Abstraction has 66771 states and 105839 transitions. [2024-11-08 11:56:44,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 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 11:56:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 66771 states and 105839 transitions. [2024-11-08 11:56:44,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-08 11:56:44,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:44,640 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:56:44,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:56:44,641 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:44,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash -594466762, now seen corresponding path program 1 times [2024-11-08 11:56:44,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:44,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063981715] [2024-11-08 11:56:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 11:56:44,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:44,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063981715] [2024-11-08 11:56:44,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063981715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:44,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:44,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:44,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733488593] [2024-11-08 11:56:44,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:44,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:44,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:44,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:44,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:44,742 INFO L87 Difference]: Start difference. First operand 66771 states and 105839 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 11:56:46,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:46,129 INFO L93 Difference]: Finished difference Result 129327 states and 204980 transitions. [2024-11-08 11:56:46,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:46,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 46 [2024-11-08 11:56:46,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:46,223 INFO L225 Difference]: With dead ends: 129327 [2024-11-08 11:56:46,224 INFO L226 Difference]: Without dead ends: 62559 [2024-11-08 11:56:46,274 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 11:56:46,275 INFO L432 NwaCegarLoop]: 12047 mSDtfsCounter, 10323 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10323 SdHoareTripleChecker+Valid, 12598 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1190 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:46,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10323 Valid, 12598 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1190 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:56:46,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62559 states. [2024-11-08 11:56:46,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62559 to 62557. [2024-11-08 11:56:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62557 states, 62556 states have (on average 1.5842285312360125) internal successors, (99103), 62556 states have internal predecessors, (99103), 0 states have call successors, (0), 0 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 11:56:46,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62557 states to 62557 states and 99103 transitions. [2024-11-08 11:56:46,972 INFO L78 Accepts]: Start accepts. Automaton has 62557 states and 99103 transitions. Word has length 46 [2024-11-08 11:56:46,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:46,972 INFO L471 AbstractCegarLoop]: Abstraction has 62557 states and 99103 transitions. [2024-11-08 11:56:46,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 11:56:46,973 INFO L276 IsEmpty]: Start isEmpty. Operand 62557 states and 99103 transitions. [2024-11-08 11:56:46,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 11:56:46,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:46,974 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-08 11:56:46,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:56:46,974 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:46,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1299656225, now seen corresponding path program 1 times [2024-11-08 11:56:46,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:46,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531233588] [2024-11-08 11:56:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:56:47,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:47,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531233588] [2024-11-08 11:56:47,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531233588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:47,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:47,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:56:47,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140476833] [2024-11-08 11:56:47,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:47,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:56:47,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:47,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:56:47,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:56:47,229 INFO L87 Difference]: Start difference. First operand 62557 states and 99103 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 11:56:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:51,777 INFO L93 Difference]: Finished difference Result 119614 states and 189347 transitions. [2024-11-08 11:56:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:56:51,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-08 11:56:51,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:51,865 INFO L225 Difference]: With dead ends: 119614 [2024-11-08 11:56:51,866 INFO L226 Difference]: Without dead ends: 62793 [2024-11-08 11:56:51,911 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 11:56:51,911 INFO L432 NwaCegarLoop]: 9462 mSDtfsCounter, 19672 mSDsluCounter, 9233 mSDsCounter, 0 mSdLazyCounter, 4620 mSolverCounterSat, 2448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19672 SdHoareTripleChecker+Valid, 18695 SdHoareTripleChecker+Invalid, 7068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2448 IncrementalHoareTripleChecker+Valid, 4620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:51,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19672 Valid, 18695 Invalid, 7068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2448 Valid, 4620 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-08 11:56:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62793 states. [2024-11-08 11:56:52,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62793 to 60395. [2024-11-08 11:56:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60395 states, 60394 states have (on average 1.5627380203331456) internal successors, (94380), 60394 states have internal predecessors, (94380), 0 states have call successors, (0), 0 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 11:56:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60395 states to 60395 states and 94380 transitions. [2024-11-08 11:56:52,565 INFO L78 Accepts]: Start accepts. Automaton has 60395 states and 94380 transitions. Word has length 52 [2024-11-08 11:56:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:52,566 INFO L471 AbstractCegarLoop]: Abstraction has 60395 states and 94380 transitions. [2024-11-08 11:56:52,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 11:56:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 60395 states and 94380 transitions. [2024-11-08 11:56:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 11:56:52,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:52,567 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-08 11:56:52,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:56:52,567 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:52,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1610447069, now seen corresponding path program 1 times [2024-11-08 11:56:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107911822] [2024-11-08 11:56:52,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 11:56:52,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:52,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107911822] [2024-11-08 11:56:52,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107911822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:52,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:52,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:52,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442983073] [2024-11-08 11:56:52,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:52,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:52,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:52,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:52,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:52,662 INFO L87 Difference]: Start difference. First operand 60395 states and 94380 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 11:56:55,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:56:55,712 INFO L93 Difference]: Finished difference Result 120432 states and 188193 transitions. [2024-11-08 11:56:55,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:56:55,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-08 11:56:55,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:56:55,797 INFO L225 Difference]: With dead ends: 120432 [2024-11-08 11:56:55,798 INFO L226 Difference]: Without dead ends: 60457 [2024-11-08 11:56:55,835 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 11:56:55,836 INFO L432 NwaCegarLoop]: 11637 mSDtfsCounter, 277 mSDsluCounter, 10274 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 21911 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:56:55,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 21911 Invalid, 1093 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [65 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 11:56:55,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60457 states. [2024-11-08 11:56:56,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60457 to 60455. [2024-11-08 11:56:56,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60455 states, 60454 states have (on average 1.5621795083865417) internal successors, (94440), 60454 states have internal predecessors, (94440), 0 states have call successors, (0), 0 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 11:56:56,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60455 states to 60455 states and 94440 transitions. [2024-11-08 11:56:56,710 INFO L78 Accepts]: Start accepts. Automaton has 60455 states and 94440 transitions. Word has length 53 [2024-11-08 11:56:56,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:56:56,710 INFO L471 AbstractCegarLoop]: Abstraction has 60455 states and 94440 transitions. [2024-11-08 11:56:56,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 11:56:56,710 INFO L276 IsEmpty]: Start isEmpty. Operand 60455 states and 94440 transitions. [2024-11-08 11:56:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 11:56:56,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:56:56,711 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:56:56,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 11:56:56,711 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:56:56,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:56:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2089054241, now seen corresponding path program 1 times [2024-11-08 11:56:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:56:56,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62485922] [2024-11-08 11:56:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:56:56,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:56:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:56:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 11:56:56,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:56:56,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62485922] [2024-11-08 11:56:56,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62485922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:56:56,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:56:56,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:56:56,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353580398] [2024-11-08 11:56:56,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:56:56,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:56:56,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:56:56,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:56:56,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:56:56,856 INFO L87 Difference]: Start difference. First operand 60455 states and 94440 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:57:00,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:57:00,141 INFO L93 Difference]: Finished difference Result 110047 states and 171350 transitions. [2024-11-08 11:57:00,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:57:00,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-08 11:57:00,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:57:00,222 INFO L225 Difference]: With dead ends: 110047 [2024-11-08 11:57:00,223 INFO L226 Difference]: Without dead ends: 61421 [2024-11-08 11:57:00,252 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 11:57:00,253 INFO L432 NwaCegarLoop]: 10159 mSDtfsCounter, 9658 mSDsluCounter, 9402 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 1080 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9658 SdHoareTripleChecker+Valid, 19561 SdHoareTripleChecker+Invalid, 4001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1080 IncrementalHoareTripleChecker+Valid, 2921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:57:00,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9658 Valid, 19561 Invalid, 4001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1080 Valid, 2921 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 11:57:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61421 states. [2024-11-08 11:57:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61421 to 60199. [2024-11-08 11:57:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60199 states, 60198 states have (on average 1.5518123525698528) internal successors, (93416), 60198 states have internal predecessors, (93416), 0 states have call successors, (0), 0 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 11:57:01,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60199 states to 60199 states and 93416 transitions. [2024-11-08 11:57:01,003 INFO L78 Accepts]: Start accepts. Automaton has 60199 states and 93416 transitions. Word has length 58 [2024-11-08 11:57:01,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:57:01,003 INFO L471 AbstractCegarLoop]: Abstraction has 60199 states and 93416 transitions. [2024-11-08 11:57:01,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:57:01,003 INFO L276 IsEmpty]: Start isEmpty. Operand 60199 states and 93416 transitions. [2024-11-08 11:57:01,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 11:57:01,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:57:01,004 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:57:01,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:57:01,004 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:57:01,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:57:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1311774324, now seen corresponding path program 1 times [2024-11-08 11:57:01,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:57:01,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978749004] [2024-11-08 11:57:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:57:01,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:57:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:57:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:57:01,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:57:01,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978749004] [2024-11-08 11:57:01,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978749004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:57:01,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:57:01,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:57:01,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040443469] [2024-11-08 11:57:01,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:57:01,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:57:01,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:57:01,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:57:01,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:57:01,116 INFO L87 Difference]: Start difference. First operand 60199 states and 93416 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:57:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:57:04,851 INFO L93 Difference]: Finished difference Result 122230 states and 188541 transitions. [2024-11-08 11:57:04,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:57:04,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-08 11:57:04,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:57:04,930 INFO L225 Difference]: With dead ends: 122230 [2024-11-08 11:57:04,930 INFO L226 Difference]: Without dead ends: 62411 [2024-11-08 11:57:04,968 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 11:57:04,969 INFO L432 NwaCegarLoop]: 10086 mSDtfsCounter, 9795 mSDsluCounter, 9166 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9795 SdHoareTripleChecker+Valid, 19252 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:57:04,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9795 Valid, 19252 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 3959 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 11:57:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62411 states. [2024-11-08 11:57:05,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62411 to 59893. [2024-11-08 11:57:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59893 states, 59892 states have (on average 1.5482702197288452) internal successors, (92729), 59892 states have internal predecessors, (92729), 0 states have call successors, (0), 0 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 11:57:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59893 states to 59893 states and 92729 transitions. [2024-11-08 11:57:05,729 INFO L78 Accepts]: Start accepts. Automaton has 59893 states and 92729 transitions. Word has length 64 [2024-11-08 11:57:05,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:57:05,730 INFO L471 AbstractCegarLoop]: Abstraction has 59893 states and 92729 transitions. [2024-11-08 11:57:05,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:57:05,730 INFO L276 IsEmpty]: Start isEmpty. Operand 59893 states and 92729 transitions. [2024-11-08 11:57:05,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 11:57:05,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:57:05,731 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:57:05,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:57:05,731 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:57:05,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:57:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1468274043, now seen corresponding path program 1 times [2024-11-08 11:57:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:57:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55123823] [2024-11-08 11:57:05,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:57:05,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:57:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:57:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:57:06,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:57:06,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55123823] [2024-11-08 11:57:06,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55123823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:57:06,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:57:06,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:57:06,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858950382] [2024-11-08 11:57:06,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:57:06,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:57:06,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:57:06,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:57:06,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:57:06,291 INFO L87 Difference]: Start difference. First operand 59893 states and 92729 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)