./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/systemc/transmitter.07.cil.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 022987cd4c8c671e376c5c3e5a08e2f1b98444b4d5d48bc73787bff74aa0de0f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:09:52,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:09:52,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:09:52,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:09:52,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:09:52,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:09:52,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:09:52,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:09:52,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:09:52,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:09:52,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:09:52,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:09:52,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:09:52,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:09:52,514 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:09:52,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:09:52,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:09:52,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:09:52,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:09:52,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:09:52,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:09:52,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:09:52,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:09:52,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:09:52,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:09:52,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:09:52,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:09:52,522 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:09:52,522 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:09:52,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:09:52,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:09:52,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:09:52,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:09:52,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:09:52,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:09:52,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:09:52,524 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:09:52,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:09:52,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:09:52,524 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:09:52,524 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:09:52,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:09:52,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022987cd4c8c671e376c5c3e5a08e2f1b98444b4d5d48bc73787bff74aa0de0f [2024-11-16 08:09:52,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:09:52,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:09:52,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:09:52,765 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:09:52,765 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:09:52,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-11-16 08:09:54,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:09:54,241 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:09:54,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-11-16 08:09:54,255 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2077ffbbb/cab142e9b7194b12ae88c18575dbc69a/FLAG1ffb40538 [2024-11-16 08:09:54,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2077ffbbb/cab142e9b7194b12ae88c18575dbc69a [2024-11-16 08:09:54,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:09:54,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:09:54,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:09:54,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:09:54,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:09:54,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d33973d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54, skipping insertion in model container [2024-11-16 08:09:54,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:09:54,476 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/systemc/transmitter.07.cil.c[706,719] [2024-11-16 08:09:54,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:09:54,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:09:54,588 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/systemc/transmitter.07.cil.c[706,719] [2024-11-16 08:09:54,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:09:54,658 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:09:54,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54 WrapperNode [2024-11-16 08:09:54,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:09:54,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:09:54,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:09:54,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:09:54,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,715 INFO L138 Inliner]: procedures = 42, calls = 51, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 553 [2024-11-16 08:09:54,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:09:54,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:09:54,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:09:54,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:09:54,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,759 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]. [2024-11-16 08:09:54,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,773 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:09:54,782 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:09:54,782 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:09:54,782 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:09:54,783 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (1/1) ... [2024-11-16 08:09:54,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:09:54,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:09:54,810 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) [2024-11-16 08:09:54,815 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 [2024-11-16 08:09:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:09:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:09:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:09:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:09:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:09:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 08:09:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 08:09:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:09:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:09:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:09:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:09:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:09:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:09:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:09:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:09:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:09:54,939 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:09:54,941 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:09:55,499 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-16 08:09:55,500 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:09:55,516 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:09:55,517 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:09:55,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:09:55 BoogieIcfgContainer [2024-11-16 08:09:55,517 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:09:55,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:09:55,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:09:55,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:09:55,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:09:54" (1/3) ... [2024-11-16 08:09:55,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428d2a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:55, skipping insertion in model container [2024-11-16 08:09:55,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:54" (2/3) ... [2024-11-16 08:09:55,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428d2a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:55, skipping insertion in model container [2024-11-16 08:09:55,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:09:55" (3/3) ... [2024-11-16 08:09:55,524 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.07.cil.c [2024-11-16 08:09:55,542 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:09:55,542 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:09:55,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:09:55,604 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;@3f9e9dcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:09:55,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:09:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 275 states have (on average 1.5236363636363637) internal successors, (419), 277 states have internal predecessors, (419), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 08:09:55,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:09:55,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:55,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:55,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:55,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash 550238082, now seen corresponding path program 1 times [2024-11-16 08:09:55,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:55,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486810429] [2024-11-16 08:09:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:55,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:56,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:56,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:09:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:56,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:09:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:56,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:09:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:56,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:09:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:56,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:56,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486810429] [2024-11-16 08:09:56,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486810429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:56,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:56,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:09:56,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420187372] [2024-11-16 08:09:56,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:56,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:09:56,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:56,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:09:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:09:56,312 INFO L87 Difference]: Start difference. First operand has 303 states, 275 states have (on average 1.5236363636363637) internal successors, (419), 277 states have internal predecessors, (419), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:09:58,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:58,094 INFO L93 Difference]: Finished difference Result 1034 states and 1620 transitions. [2024-11-16 08:09:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:09:58,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:09:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:58,113 INFO L225 Difference]: With dead ends: 1034 [2024-11-16 08:09:58,113 INFO L226 Difference]: Without dead ends: 736 [2024-11-16 08:09:58,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:09:58,123 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 1005 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:58,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1072 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 08:09:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-16 08:09:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 565. [2024-11-16 08:09:58,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 516 states have (on average 1.4689922480620154) internal successors, (758), 518 states have internal predecessors, (758), 35 states have call successors, (35), 12 states have call predecessors, (35), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2024-11-16 08:09:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 831 transitions. [2024-11-16 08:09:58,220 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 831 transitions. Word has length 131 [2024-11-16 08:09:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:58,221 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 831 transitions. [2024-11-16 08:09:58,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:09:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 831 transitions. [2024-11-16 08:09:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:09:58,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:58,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:58,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:09:58,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:58,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:58,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2375387, now seen corresponding path program 1 times [2024-11-16 08:09:58,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:58,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041935364] [2024-11-16 08:09:58,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:58,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:58,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:58,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:09:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:58,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:09:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:58,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:09:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:58,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:09:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:58,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:58,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041935364] [2024-11-16 08:09:58,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041935364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:58,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:58,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:58,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951415977] [2024-11-16 08:09:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:58,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:58,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:58,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:58,527 INFO L87 Difference]: Start difference. First operand 565 states and 831 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:09:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:59,484 INFO L93 Difference]: Finished difference Result 1295 states and 1945 transitions. [2024-11-16 08:09:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:09:59,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:09:59,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:59,489 INFO L225 Difference]: With dead ends: 1295 [2024-11-16 08:09:59,489 INFO L226 Difference]: Without dead ends: 745 [2024-11-16 08:09:59,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:09:59,491 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 848 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:59,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 827 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:09:59,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-11-16 08:09:59,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 565. [2024-11-16 08:09:59,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 516 states have (on average 1.4651162790697674) internal successors, (756), 518 states have internal predecessors, (756), 35 states have call successors, (35), 12 states have call predecessors, (35), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2024-11-16 08:09:59,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 829 transitions. [2024-11-16 08:09:59,524 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 829 transitions. Word has length 131 [2024-11-16 08:09:59,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:59,524 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 829 transitions. [2024-11-16 08:09:59,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:09:59,524 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 829 transitions. [2024-11-16 08:09:59,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:09:59,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:59,526 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:59,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:09:59,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:59,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:59,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1286286554, now seen corresponding path program 1 times [2024-11-16 08:09:59,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:59,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949358954] [2024-11-16 08:09:59,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:59,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:09:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:09:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:09:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:09:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:59,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949358954] [2024-11-16 08:09:59,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949358954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:59,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:59,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:59,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733177564] [2024-11-16 08:09:59,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:59,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:59,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:59,747 INFO L87 Difference]: Start difference. First operand 565 states and 829 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:02,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:02,050 INFO L93 Difference]: Finished difference Result 1762 states and 2640 transitions. [2024-11-16 08:10:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:10:02,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:02,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:02,062 INFO L225 Difference]: With dead ends: 1762 [2024-11-16 08:10:02,062 INFO L226 Difference]: Without dead ends: 1212 [2024-11-16 08:10:02,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:10:02,065 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1076 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:02,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 2030 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 08:10:02,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2024-11-16 08:10:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 827. [2024-11-16 08:10:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 756 states have (on average 1.4563492063492063) internal successors, (1101), 759 states have internal predecessors, (1101), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2024-11-16 08:10:02,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1206 transitions. [2024-11-16 08:10:02,119 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1206 transitions. Word has length 131 [2024-11-16 08:10:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:02,120 INFO L471 AbstractCegarLoop]: Abstraction has 827 states and 1206 transitions. [2024-11-16 08:10:02,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1206 transitions. [2024-11-16 08:10:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:02,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:02,123 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:02,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:10:02,124 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:02,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:02,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1050608379, now seen corresponding path program 1 times [2024-11-16 08:10:02,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:02,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468861516] [2024-11-16 08:10:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:02,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:02,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:02,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:02,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:02,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:02,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:02,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:02,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468861516] [2024-11-16 08:10:02,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468861516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:02,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:02,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:02,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683031304] [2024-11-16 08:10:02,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:02,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:02,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:02,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:02,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:02,285 INFO L87 Difference]: Start difference. First operand 827 states and 1206 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:04,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:04,473 INFO L93 Difference]: Finished difference Result 2719 states and 4059 transitions. [2024-11-16 08:10:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:10:04,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:04,488 INFO L225 Difference]: With dead ends: 2719 [2024-11-16 08:10:04,489 INFO L226 Difference]: Without dead ends: 1907 [2024-11-16 08:10:04,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:10:04,491 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1074 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2768 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:04,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 2028 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2768 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 08:10:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2024-11-16 08:10:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1353. [2024-11-16 08:10:04,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1238 states have (on average 1.4491114701130856) internal successors, (1794), 1243 states have internal predecessors, (1794), 80 states have call successors, (80), 30 states have call predecessors, (80), 34 states have return successors, (93), 83 states have call predecessors, (93), 80 states have call successors, (93) [2024-11-16 08:10:04,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1967 transitions. [2024-11-16 08:10:04,553 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1967 transitions. Word has length 131 [2024-11-16 08:10:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:04,554 INFO L471 AbstractCegarLoop]: Abstraction has 1353 states and 1967 transitions. [2024-11-16 08:10:04,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1967 transitions. [2024-11-16 08:10:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:04,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:04,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:04,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:10:04,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:04,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1874289850, now seen corresponding path program 1 times [2024-11-16 08:10:04,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:04,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435423929] [2024-11-16 08:10:04,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:04,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:04,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:04,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:04,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:04,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:04,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:04,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:04,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:04,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435423929] [2024-11-16 08:10:04,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435423929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:04,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:04,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:04,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131833725] [2024-11-16 08:10:04,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:04,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:04,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:04,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:04,743 INFO L87 Difference]: Start difference. First operand 1353 states and 1967 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:06,758 INFO L93 Difference]: Finished difference Result 4577 states and 6800 transitions. [2024-11-16 08:10:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:10:06,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:06,770 INFO L225 Difference]: With dead ends: 4577 [2024-11-16 08:10:06,771 INFO L226 Difference]: Without dead ends: 3239 [2024-11-16 08:10:06,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:10:06,776 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1070 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2759 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:06,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2028 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2759 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 08:10:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2024-11-16 08:10:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 2407. [2024-11-16 08:10:06,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2204 states have (on average 1.4437386569872959) internal successors, (3182), 2213 states have internal predecessors, (3182), 140 states have call successors, (140), 54 states have call predecessors, (140), 62 states have return successors, (175), 147 states have call predecessors, (175), 140 states have call successors, (175) [2024-11-16 08:10:06,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3497 transitions. [2024-11-16 08:10:06,905 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3497 transitions. Word has length 131 [2024-11-16 08:10:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:06,905 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 3497 transitions. [2024-11-16 08:10:06,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3497 transitions. [2024-11-16 08:10:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:06,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:06,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:06,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:10:06,909 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:06,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash -792481563, now seen corresponding path program 1 times [2024-11-16 08:10:06,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:06,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910674322] [2024-11-16 08:10:06,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:06,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:06,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:06,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:07,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:07,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:07,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:07,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910674322] [2024-11-16 08:10:07,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910674322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:07,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:07,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:07,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772310653] [2024-11-16 08:10:07,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:07,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:07,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:07,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:07,063 INFO L87 Difference]: Start difference. First operand 2407 states and 3497 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:08,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:08,997 INFO L93 Difference]: Finished difference Result 8293 states and 12300 transitions. [2024-11-16 08:10:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:10:08,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:08,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:09,021 INFO L225 Difference]: With dead ends: 8293 [2024-11-16 08:10:09,021 INFO L226 Difference]: Without dead ends: 5901 [2024-11-16 08:10:09,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:10:09,028 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1066 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 2803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:09,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2028 Invalid, 2803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 08:10:09,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2024-11-16 08:10:09,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 4521. [2024-11-16 08:10:09,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4521 states, 4142 states have (on average 1.4403669724770642) internal successors, (5966), 4159 states have internal predecessors, (5966), 260 states have call successors, (260), 102 states have call predecessors, (260), 118 states have return successors, (357), 275 states have call predecessors, (357), 260 states have call successors, (357) [2024-11-16 08:10:09,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 6583 transitions. [2024-11-16 08:10:09,206 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 6583 transitions. Word has length 131 [2024-11-16 08:10:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:09,206 INFO L471 AbstractCegarLoop]: Abstraction has 4521 states and 6583 transitions. [2024-11-16 08:10:09,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 6583 transitions. [2024-11-16 08:10:09,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:09,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:09,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:09,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:10:09,213 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:09,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1311773850, now seen corresponding path program 1 times [2024-11-16 08:10:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926826527] [2024-11-16 08:10:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:09,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:09,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:09,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:09,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:09,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:09,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:09,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:09,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926826527] [2024-11-16 08:10:09,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926826527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:09,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:09,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:09,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243421789] [2024-11-16 08:10:09,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:09,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:09,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:09,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:09,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:09,386 INFO L87 Difference]: Start difference. First operand 4521 states and 6583 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:11,485 INFO L93 Difference]: Finished difference Result 15725 states and 23360 transitions. [2024-11-16 08:10:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:10:11,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:11,552 INFO L225 Difference]: With dead ends: 15725 [2024-11-16 08:10:11,552 INFO L226 Difference]: Without dead ends: 11219 [2024-11-16 08:10:11,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:10:11,569 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 1062 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:11,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 2028 Invalid, 2794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 08:10:11,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2024-11-16 08:10:11,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 8763. [2024-11-16 08:10:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8763 states, 8032 states have (on average 1.438496015936255) internal successors, (11554), 8065 states have internal predecessors, (11554), 500 states have call successors, (500), 198 states have call predecessors, (500), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2024-11-16 08:10:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8763 states to 8763 states and 12829 transitions. [2024-11-16 08:10:11,924 INFO L78 Accepts]: Start accepts. Automaton has 8763 states and 12829 transitions. Word has length 131 [2024-11-16 08:10:11,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:11,926 INFO L471 AbstractCegarLoop]: Abstraction has 8763 states and 12829 transitions. [2024-11-16 08:10:11,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 8763 states and 12829 transitions. [2024-11-16 08:10:11,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:11,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:11,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:11,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:10:11,939 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:11,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:11,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1996610757, now seen corresponding path program 1 times [2024-11-16 08:10:11,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:11,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534562772] [2024-11-16 08:10:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:11,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:12,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:12,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:12,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:12,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:12,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:12,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:12,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534562772] [2024-11-16 08:10:12,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534562772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:12,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:12,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:12,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711758188] [2024-11-16 08:10:12,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:12,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:12,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:12,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:12,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:12,087 INFO L87 Difference]: Start difference. First operand 8763 states and 12829 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:13,153 INFO L93 Difference]: Finished difference Result 19956 states and 29841 transitions. [2024-11-16 08:10:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:10:13,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:13,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:13,188 INFO L225 Difference]: With dead ends: 19956 [2024-11-16 08:10:13,189 INFO L226 Difference]: Without dead ends: 11208 [2024-11-16 08:10:13,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:13,206 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 854 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:13,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 826 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:10:13,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2024-11-16 08:10:13,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 8763. [2024-11-16 08:10:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8763 states, 8032 states have (on average 1.434387450199203) internal successors, (11521), 8065 states have internal predecessors, (11521), 500 states have call successors, (500), 198 states have call predecessors, (500), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2024-11-16 08:10:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8763 states to 8763 states and 12796 transitions. [2024-11-16 08:10:13,595 INFO L78 Accepts]: Start accepts. Automaton has 8763 states and 12796 transitions. Word has length 131 [2024-11-16 08:10:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:13,596 INFO L471 AbstractCegarLoop]: Abstraction has 8763 states and 12796 transitions. [2024-11-16 08:10:13,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:13,596 INFO L276 IsEmpty]: Start isEmpty. Operand 8763 states and 12796 transitions. [2024-11-16 08:10:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:13,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:13,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:13,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:10:13,610 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:13,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1221803130, now seen corresponding path program 1 times [2024-11-16 08:10:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933570516] [2024-11-16 08:10:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:13,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:13,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:13,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:13,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:13,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933570516] [2024-11-16 08:10:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933570516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:13,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696784862] [2024-11-16 08:10:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:13,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:13,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:13,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:13,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:13,760 INFO L87 Difference]: Start difference. First operand 8763 states and 12796 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:15,089 INFO L93 Difference]: Finished difference Result 19921 states and 29673 transitions. [2024-11-16 08:10:15,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:10:15,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:15,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:15,128 INFO L225 Difference]: With dead ends: 19921 [2024-11-16 08:10:15,128 INFO L226 Difference]: Without dead ends: 11173 [2024-11-16 08:10:15,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:15,150 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 744 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:15,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 994 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:10:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11173 states. [2024-11-16 08:10:15,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11173 to 8763. [2024-11-16 08:10:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8763 states, 8032 states have (on average 1.4302788844621515) internal successors, (11488), 8065 states have internal predecessors, (11488), 500 states have call successors, (500), 198 states have call predecessors, (500), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2024-11-16 08:10:15,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8763 states to 8763 states and 12763 transitions. [2024-11-16 08:10:15,633 INFO L78 Accepts]: Start accepts. Automaton has 8763 states and 12763 transitions. Word has length 131 [2024-11-16 08:10:15,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:15,633 INFO L471 AbstractCegarLoop]: Abstraction has 8763 states and 12763 transitions. [2024-11-16 08:10:15,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 8763 states and 12763 transitions. [2024-11-16 08:10:15,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:15,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:15,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:15,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:10:15,645 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:15,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:15,645 INFO L85 PathProgramCache]: Analyzing trace with hash 614039717, now seen corresponding path program 1 times [2024-11-16 08:10:15,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:15,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730088021] [2024-11-16 08:10:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:15,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:15,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:15,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:15,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:15,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:15,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:15,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:15,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730088021] [2024-11-16 08:10:15,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730088021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:15,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:15,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:15,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962676928] [2024-11-16 08:10:15,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:15,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:15,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:15,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:15,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:15,770 INFO L87 Difference]: Start difference. First operand 8763 states and 12763 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:18,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:18,217 INFO L93 Difference]: Finished difference Result 33141 states and 49174 transitions. [2024-11-16 08:10:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:10:18,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:18,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:18,288 INFO L225 Difference]: With dead ends: 33141 [2024-11-16 08:10:18,289 INFO L226 Difference]: Without dead ends: 24393 [2024-11-16 08:10:18,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-16 08:10:18,309 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 1255 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:18,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 2004 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 08:10:18,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24393 states. [2024-11-16 08:10:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24393 to 17245. [2024-11-16 08:10:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17245 states, 15842 states have (on average 1.4294912258553214) internal successors, (22646), 15907 states have internal predecessors, (22646), 948 states have call successors, (948), 390 states have call predecessors, (948), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2024-11-16 08:10:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17245 states to 17245 states and 25335 transitions. [2024-11-16 08:10:19,435 INFO L78 Accepts]: Start accepts. Automaton has 17245 states and 25335 transitions. Word has length 131 [2024-11-16 08:10:19,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:19,436 INFO L471 AbstractCegarLoop]: Abstraction has 17245 states and 25335 transitions. [2024-11-16 08:10:19,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:19,436 INFO L276 IsEmpty]: Start isEmpty. Operand 17245 states and 25335 transitions. [2024-11-16 08:10:19,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:19,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:19,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:19,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:10:19,457 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:19,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:19,457 INFO L85 PathProgramCache]: Analyzing trace with hash 673260454, now seen corresponding path program 1 times [2024-11-16 08:10:19,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:19,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237986606] [2024-11-16 08:10:19,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:19,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:19,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:19,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:19,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:19,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:19,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:19,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:19,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237986606] [2024-11-16 08:10:19,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237986606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:19,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:19,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:19,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585627845] [2024-11-16 08:10:19,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:19,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:19,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:19,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:19,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:19,582 INFO L87 Difference]: Start difference. First operand 17245 states and 25335 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:21,139 INFO L93 Difference]: Finished difference Result 38927 states and 58361 transitions. [2024-11-16 08:10:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:10:21,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:21,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:21,199 INFO L225 Difference]: With dead ends: 38927 [2024-11-16 08:10:21,199 INFO L226 Difference]: Without dead ends: 21697 [2024-11-16 08:10:21,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:21,224 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 849 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:21,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 824 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:10:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21697 states. [2024-11-16 08:10:21,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21697 to 17245. [2024-11-16 08:10:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17245 states, 15842 states have (on average 1.4253882085595253) internal successors, (22581), 15907 states have internal predecessors, (22581), 948 states have call successors, (948), 390 states have call predecessors, (948), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2024-11-16 08:10:22,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17245 states to 17245 states and 25270 transitions. [2024-11-16 08:10:22,047 INFO L78 Accepts]: Start accepts. Automaton has 17245 states and 25270 transitions. Word has length 131 [2024-11-16 08:10:22,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:22,048 INFO L471 AbstractCegarLoop]: Abstraction has 17245 states and 25270 transitions. [2024-11-16 08:10:22,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:22,048 INFO L276 IsEmpty]: Start isEmpty. Operand 17245 states and 25270 transitions. [2024-11-16 08:10:22,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:22,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:22,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:22,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:10:22,066 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:22,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:22,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1367907461, now seen corresponding path program 1 times [2024-11-16 08:10:22,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:22,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773855736] [2024-11-16 08:10:22,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:22,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:22,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:22,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:22,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:22,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:22,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:22,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:22,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773855736] [2024-11-16 08:10:22,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773855736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:22,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:22,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:22,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139376302] [2024-11-16 08:10:22,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:22,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:22,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:22,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:22,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:22,204 INFO L87 Difference]: Start difference. First operand 17245 states and 25270 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:23,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:23,948 INFO L93 Difference]: Finished difference Result 38860 states and 58033 transitions. [2024-11-16 08:10:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:10:23,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:24,022 INFO L225 Difference]: With dead ends: 38860 [2024-11-16 08:10:24,023 INFO L226 Difference]: Without dead ends: 21630 [2024-11-16 08:10:24,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:24,057 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 741 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:24,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 994 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:10:24,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21630 states. [2024-11-16 08:10:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21630 to 17245. [2024-11-16 08:10:25,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17245 states, 15842 states have (on average 1.4212851912637294) internal successors, (22516), 15907 states have internal predecessors, (22516), 948 states have call successors, (948), 390 states have call predecessors, (948), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2024-11-16 08:10:25,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17245 states to 17245 states and 25205 transitions. [2024-11-16 08:10:25,289 INFO L78 Accepts]: Start accepts. Automaton has 17245 states and 25205 transitions. Word has length 131 [2024-11-16 08:10:25,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:25,290 INFO L471 AbstractCegarLoop]: Abstraction has 17245 states and 25205 transitions. [2024-11-16 08:10:25,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17245 states and 25205 transitions. [2024-11-16 08:10:25,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:25,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:25,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:25,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:10:25,306 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:25,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:25,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1796273210, now seen corresponding path program 1 times [2024-11-16 08:10:25,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:25,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316926123] [2024-11-16 08:10:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:25,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:25,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:25,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:25,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:25,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:25,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:25,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:25,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316926123] [2024-11-16 08:10:25,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316926123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:25,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:25,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:25,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535939234] [2024-11-16 08:10:25,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:25,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:25,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:25,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:25,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:25,419 INFO L87 Difference]: Start difference. First operand 17245 states and 25205 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:28,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:28,901 INFO L93 Difference]: Finished difference Result 62377 states and 92712 transitions. [2024-11-16 08:10:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:10:28,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:29,035 INFO L225 Difference]: With dead ends: 62377 [2024-11-16 08:10:29,035 INFO L226 Difference]: Without dead ends: 45147 [2024-11-16 08:10:29,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-16 08:10:29,085 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 1118 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 2426 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 2482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:29,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2004 Invalid, 2482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2426 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 08:10:29,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45147 states. [2024-11-16 08:10:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45147 to 34299. [2024-11-16 08:10:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34299 states, 31584 states have (on average 1.4201494427558257) internal successors, (44854), 31713 states have internal predecessors, (44854), 1812 states have call successors, (1812), 774 states have call predecessors, (1812), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 08:10:30,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34299 states to 34299 states and 50793 transitions. [2024-11-16 08:10:30,753 INFO L78 Accepts]: Start accepts. Automaton has 34299 states and 50793 transitions. Word has length 131 [2024-11-16 08:10:30,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:30,754 INFO L471 AbstractCegarLoop]: Abstraction has 34299 states and 50793 transitions. [2024-11-16 08:10:30,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:30,754 INFO L276 IsEmpty]: Start isEmpty. Operand 34299 states and 50793 transitions. [2024-11-16 08:10:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:30,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:30,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:30,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:10:30,786 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:30,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:30,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1565339749, now seen corresponding path program 1 times [2024-11-16 08:10:30,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:30,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728733181] [2024-11-16 08:10:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:30,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:30,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:30,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:30,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:30,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:30,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:30,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:30,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728733181] [2024-11-16 08:10:30,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728733181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:30,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:30,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:30,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066637515] [2024-11-16 08:10:30,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:30,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:30,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:30,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:30,899 INFO L87 Difference]: Start difference. First operand 34299 states and 50793 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:34,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:34,062 INFO L93 Difference]: Finished difference Result 76674 states and 115997 transitions. [2024-11-16 08:10:34,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:10:34,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:34,184 INFO L225 Difference]: With dead ends: 76674 [2024-11-16 08:10:34,184 INFO L226 Difference]: Without dead ends: 42390 [2024-11-16 08:10:34,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:34,236 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 846 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:34,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 824 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:10:34,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42390 states. [2024-11-16 08:10:35,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42390 to 34299. [2024-11-16 08:10:35,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34299 states, 31584 states have (on average 1.4160650962512664) internal successors, (44725), 31713 states have internal predecessors, (44725), 1812 states have call successors, (1812), 774 states have call predecessors, (1812), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 08:10:36,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34299 states to 34299 states and 50664 transitions. [2024-11-16 08:10:36,017 INFO L78 Accepts]: Start accepts. Automaton has 34299 states and 50664 transitions. Word has length 131 [2024-11-16 08:10:36,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:36,017 INFO L471 AbstractCegarLoop]: Abstraction has 34299 states and 50664 transitions. [2024-11-16 08:10:36,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand 34299 states and 50664 transitions. [2024-11-16 08:10:36,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:36,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:36,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:36,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:10:36,044 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:36,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1235715098, now seen corresponding path program 1 times [2024-11-16 08:10:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:36,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543012997] [2024-11-16 08:10:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:36,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:36,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:36,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:36,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:36,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:36,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:36,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:36,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543012997] [2024-11-16 08:10:36,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543012997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:36,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:36,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:36,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205360526] [2024-11-16 08:10:36,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:36,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:36,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:36,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:36,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:36,168 INFO L87 Difference]: Start difference. First operand 34299 states and 50664 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:41,766 INFO L93 Difference]: Finished difference Result 119795 states and 179991 transitions. [2024-11-16 08:10:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:10:41,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:41,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:41,998 INFO L225 Difference]: With dead ends: 119795 [2024-11-16 08:10:41,998 INFO L226 Difference]: Without dead ends: 85511 [2024-11-16 08:10:42,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-16 08:10:42,067 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 1027 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:42,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 2004 Invalid, 2549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 08:10:42,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85511 states. [2024-11-16 08:10:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85511 to 68465. [2024-11-16 08:10:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68465 states, 63190 states have (on average 1.4156353853457826) internal successors, (89454), 63447 states have internal predecessors, (89454), 3476 states have call successors, (3476), 1542 states have call predecessors, (3476), 1798 states have return successors, (10293), 3731 states have call predecessors, (10293), 3476 states have call successors, (10293) [2024-11-16 08:10:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68465 states to 68465 states and 103223 transitions. [2024-11-16 08:10:45,572 INFO L78 Accepts]: Start accepts. Automaton has 68465 states and 103223 transitions. Word has length 131 [2024-11-16 08:10:45,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:45,572 INFO L471 AbstractCegarLoop]: Abstraction has 68465 states and 103223 transitions. [2024-11-16 08:10:45,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand 68465 states and 103223 transitions. [2024-11-16 08:10:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:45,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:45,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:45,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:10:45,634 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:45,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:45,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1860516933, now seen corresponding path program 1 times [2024-11-16 08:10:45,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:45,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415241132] [2024-11-16 08:10:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:45,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:45,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:45,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:45,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:45,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:45,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:45,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:45,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415241132] [2024-11-16 08:10:45,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415241132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:45,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:45,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659076446] [2024-11-16 08:10:45,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:45,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:45,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:45,952 INFO L87 Difference]: Start difference. First operand 68465 states and 103223 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:50,808 INFO L93 Difference]: Finished difference Result 149864 states and 227629 transitions. [2024-11-16 08:10:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:10:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-11-16 08:10:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:51,050 INFO L225 Difference]: With dead ends: 149864 [2024-11-16 08:10:51,051 INFO L226 Difference]: Without dead ends: 81415 [2024-11-16 08:10:51,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:51,165 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 318 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:51,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1308 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:10:51,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81415 states. [2024-11-16 08:10:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81415 to 68468. [2024-11-16 08:10:54,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68468 states, 63193 states have (on average 1.4115645720253827) internal successors, (89201), 63450 states have internal predecessors, (89201), 3476 states have call successors, (3476), 1542 states have call predecessors, (3476), 1798 states have return successors, (10293), 3731 states have call predecessors, (10293), 3476 states have call successors, (10293) [2024-11-16 08:10:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68468 states to 68468 states and 102970 transitions. [2024-11-16 08:10:55,269 INFO L78 Accepts]: Start accepts. Automaton has 68468 states and 102970 transitions. Word has length 131 [2024-11-16 08:10:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:55,269 INFO L471 AbstractCegarLoop]: Abstraction has 68468 states and 102970 transitions. [2024-11-16 08:10:55,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:10:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 68468 states and 102970 transitions. [2024-11-16 08:10:55,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:10:55,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:55,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:55,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:10:55,347 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:55,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:55,347 INFO L85 PathProgramCache]: Analyzing trace with hash 890225926, now seen corresponding path program 1 times [2024-11-16 08:10:55,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:55,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998337650] [2024-11-16 08:10:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:55,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:10:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:10:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:10:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:10:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:55,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:55,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:55,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998337650] [2024-11-16 08:10:55,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998337650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:55,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:55,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:10:55,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033109618] [2024-11-16 08:10:55,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:55,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:10:55,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:55,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:10:55,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:10:55,481 INFO L87 Difference]: Start difference. First operand 68468 states and 102970 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)