./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:36:01,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:36:01,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:36:01,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:36:01,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:36:01,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:36:01,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:36:01,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:36:01,759 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:36:01,760 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:36:01,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:36:01,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:36:01,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:36:01,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:36:01,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:36:01,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:36:01,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:36:01,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:36:01,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:36:01,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:36:01,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:36:01,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:36:01,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:36:01,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:36:01,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:36:01,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:36:01,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:36:01,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:36:01,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:36:01,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:36:01,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:36:01,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:36:01,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:36:01,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:36:01,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:36:01,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:36:01,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:36:01,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:36:01,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:36:01,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:36:01,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:36:01,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:36:01,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022987cd4c8c671e376c5c3e5a08e2f1b98444b4d5d48bc73787bff74aa0de0f [2024-11-18 14:36:02,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:36:02,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:36:02,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:36:02,029 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:36:02,030 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:36:02,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-11-18 14:36:03,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:36:03,502 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:36:03,503 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-11-18 14:36:03,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34025e0b7/41a788f0525f42999c4d2054f19a4486/FLAG37e43cfce [2024-11-18 14:36:03,523 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34025e0b7/41a788f0525f42999c4d2054f19a4486 [2024-11-18 14:36:03,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:36:03,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:36:03,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:36:03,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:36:03,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:36:03,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35275e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03, skipping insertion in model container [2024-11-18 14:36:03,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,566 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:36:03,693 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] [2024-11-18 14:36:03,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:36:03,775 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:36:03,789 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] [2024-11-18 14:36:03,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:36:03,859 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:36:03,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03 WrapperNode [2024-11-18 14:36:03,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:36:03,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:36:03,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:36:03,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:36:03,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,900 INFO L138 Inliner]: procedures = 42, calls = 51, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 564 [2024-11-18 14:36:03,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:36:03,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:36:03,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:36:03,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:36:03,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,926 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:36:03,927 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,927 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:36:03,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:36:03,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:36:03,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:36:03,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (1/1) ... [2024-11-18 14:36:03,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:36:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:36:03,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:36:03,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:36:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:36:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 14:36:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 14:36:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 14:36:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 14:36:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 14:36:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 14:36:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 14:36:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 14:36:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 14:36:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 14:36:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:36:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 14:36:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 14:36:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:36:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:36:04,161 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:36:04,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:36:04,659 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-18 14:36:04,659 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:36:04,680 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:36:04,681 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-18 14:36:04,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:36:04 BoogieIcfgContainer [2024-11-18 14:36:04,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:36:04,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:36:04,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:36:04,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:36:04,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:36:03" (1/3) ... [2024-11-18 14:36:04,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1194c708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:36:04, skipping insertion in model container [2024-11-18 14:36:04,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:03" (2/3) ... [2024-11-18 14:36:04,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1194c708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:36:04, skipping insertion in model container [2024-11-18 14:36:04,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:36:04" (3/3) ... [2024-11-18 14:36:04,689 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.07.cil.c [2024-11-18 14:36:04,701 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:36:04,701 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:36:04,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:36:04,758 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;@588c8093, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:36:04,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:36:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 233 states have (on average 1.6180257510729614) internal successors, (377), 235 states have internal predecessors, (377), 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) [2024-11-18 14:36:04,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:04,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:04,782 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] [2024-11-18 14:36:04,783 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:04,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:04,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2130608969, now seen corresponding path program 1 times [2024-11-18 14:36:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:04,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105781856] [2024-11-18 14:36:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:04,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:05,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:05,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105781856] [2024-11-18 14:36:05,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105781856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:05,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:05,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:36:05,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743748142] [2024-11-18 14:36:05,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:05,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:36:05,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:05,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:36:05,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:36:05,173 INFO L87 Difference]: Start difference. First operand has 261 states, 233 states have (on average 1.6180257510729614) internal successors, (377), 235 states have internal predecessors, (377), 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 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:05,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:05,264 INFO L93 Difference]: Finished difference Result 511 states and 817 transitions. [2024-11-18 14:36:05,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:36:05,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-18 14:36:05,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:05,282 INFO L225 Difference]: With dead ends: 511 [2024-11-18 14:36:05,283 INFO L226 Difference]: Without dead ends: 256 [2024-11-18 14:36:05,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:36:05,293 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 383 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:05,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 391 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:36:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-18 14:36:05,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-11-18 14:36:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 229 states have (on average 1.519650655021834) internal successors, (348), 230 states have internal predecessors, (348), 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) [2024-11-18 14:36:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 388 transitions. [2024-11-18 14:36:05,360 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 388 transitions. Word has length 127 [2024-11-18 14:36:05,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:05,362 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 388 transitions. [2024-11-18 14:36:05,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 388 transitions. [2024-11-18 14:36:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:05,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:05,367 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] [2024-11-18 14:36:05,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:36:05,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:05,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:05,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1797965831, now seen corresponding path program 1 times [2024-11-18 14:36:05,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:05,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129471976] [2024-11-18 14:36:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:05,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:05,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:05,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129471976] [2024-11-18 14:36:05,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129471976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:05,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:05,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:36:05,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093601387] [2024-11-18 14:36:05,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:05,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:36:05,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:05,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:36:05,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:36:05,597 INFO L87 Difference]: Start difference. First operand 256 states and 388 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:06,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:06,082 INFO L93 Difference]: Finished difference Result 764 states and 1180 transitions. [2024-11-18 14:36:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:36:06,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:06,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:06,087 INFO L225 Difference]: With dead ends: 764 [2024-11-18 14:36:06,087 INFO L226 Difference]: Without dead ends: 523 [2024-11-18 14:36:06,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:06,089 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 713 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:06,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1057 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:36:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-18 14:36:06,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 504. [2024-11-18 14:36:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 455 states have (on average 1.5296703296703296) internal successors, (696), 457 states have internal predecessors, (696), 35 states have call successors, (35), 12 states have call predecessors, (35), 13 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2024-11-18 14:36:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 767 transitions. [2024-11-18 14:36:06,145 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 767 transitions. Word has length 127 [2024-11-18 14:36:06,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:06,145 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 767 transitions. [2024-11-18 14:36:06,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 767 transitions. [2024-11-18 14:36:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:06,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:06,151 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] [2024-11-18 14:36:06,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:36:06,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:06,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:06,152 INFO L85 PathProgramCache]: Analyzing trace with hash -371549894, now seen corresponding path program 1 times [2024-11-18 14:36:06,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:06,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385437904] [2024-11-18 14:36:06,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:06,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:06,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:06,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385437904] [2024-11-18 14:36:06,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385437904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:06,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:06,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:06,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579001480] [2024-11-18 14:36:06,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:06,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:06,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:06,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:06,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:06,356 INFO L87 Difference]: Start difference. First operand 504 states and 767 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:07,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:07,031 INFO L93 Difference]: Finished difference Result 1355 states and 2082 transitions. [2024-11-18 14:36:07,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:07,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:07,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:07,036 INFO L225 Difference]: With dead ends: 1355 [2024-11-18 14:36:07,039 INFO L226 Difference]: Without dead ends: 866 [2024-11-18 14:36:07,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:07,042 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 784 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:07,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 2026 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:36:07,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-18 14:36:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 735. [2024-11-18 14:36:07,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 664 states have (on average 1.5210843373493976) internal successors, (1010), 667 states have internal predecessors, (1010), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (54), 51 states have call predecessors, (54), 50 states have call successors, (54) [2024-11-18 14:36:07,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1114 transitions. [2024-11-18 14:36:07,092 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1114 transitions. Word has length 127 [2024-11-18 14:36:07,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:07,092 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1114 transitions. [2024-11-18 14:36:07,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:07,093 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1114 transitions. [2024-11-18 14:36:07,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:07,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:07,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:36:07,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:36:07,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:07,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:07,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1950252024, now seen corresponding path program 1 times [2024-11-18 14:36:07,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:07,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861035143] [2024-11-18 14:36:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:07,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:07,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861035143] [2024-11-18 14:36:07,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861035143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:07,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:07,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:07,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244393122] [2024-11-18 14:36:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:07,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:07,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:07,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:07,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:07,253 INFO L87 Difference]: Start difference. First operand 735 states and 1114 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:07,971 INFO L93 Difference]: Finished difference Result 2082 states and 3190 transitions. [2024-11-18 14:36:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:07,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:07,977 INFO L225 Difference]: With dead ends: 2082 [2024-11-18 14:36:07,977 INFO L226 Difference]: Without dead ends: 1362 [2024-11-18 14:36:07,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:07,980 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 779 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:07,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 2010 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:36:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-18 14:36:08,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1222. [2024-11-18 14:36:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1105 states have (on average 1.5212669683257918) internal successors, (1681), 1112 states have internal predecessors, (1681), 80 states have call successors, (80), 30 states have call predecessors, (80), 36 states have return successors, (96), 83 states have call predecessors, (96), 80 states have call successors, (96) [2024-11-18 14:36:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1857 transitions. [2024-11-18 14:36:08,041 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1857 transitions. Word has length 127 [2024-11-18 14:36:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:08,041 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 1857 transitions. [2024-11-18 14:36:08,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1857 transitions. [2024-11-18 14:36:08,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:08,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:08,043 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] [2024-11-18 14:36:08,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:36:08,044 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:08,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:08,045 INFO L85 PathProgramCache]: Analyzing trace with hash -191608454, now seen corresponding path program 1 times [2024-11-18 14:36:08,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:08,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406899509] [2024-11-18 14:36:08,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:08,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:08,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:08,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406899509] [2024-11-18 14:36:08,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406899509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:08,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:08,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:08,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484649563] [2024-11-18 14:36:08,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:08,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:08,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:08,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:08,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:08,157 INFO L87 Difference]: Start difference. First operand 1222 states and 1857 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:08,852 INFO L93 Difference]: Finished difference Result 3631 states and 5599 transitions. [2024-11-18 14:36:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:08,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:08,862 INFO L225 Difference]: With dead ends: 3631 [2024-11-18 14:36:08,862 INFO L226 Difference]: Without dead ends: 2424 [2024-11-18 14:36:08,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:08,865 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 774 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:08,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1998 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:36:08,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2024-11-18 14:36:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2265. [2024-11-18 14:36:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2050 states have (on average 1.5321951219512195) internal successors, (3141), 2071 states have internal predecessors, (3141), 140 states have call successors, (140), 54 states have call predecessors, (140), 74 states have return successors, (204), 147 states have call predecessors, (204), 140 states have call successors, (204) [2024-11-18 14:36:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3485 transitions. [2024-11-18 14:36:08,982 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3485 transitions. Word has length 127 [2024-11-18 14:36:08,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:08,983 INFO L471 AbstractCegarLoop]: Abstraction has 2265 states and 3485 transitions. [2024-11-18 14:36:08,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3485 transitions. [2024-11-18 14:36:08,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:08,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:08,987 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] [2024-11-18 14:36:08,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:36:08,988 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:08,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:08,988 INFO L85 PathProgramCache]: Analyzing trace with hash -814890056, now seen corresponding path program 1 times [2024-11-18 14:36:08,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:08,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874001393] [2024-11-18 14:36:08,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:08,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:09,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:09,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874001393] [2024-11-18 14:36:09,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874001393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:09,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:09,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410361567] [2024-11-18 14:36:09,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:09,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:09,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:09,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:09,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:09,099 INFO L87 Difference]: Start difference. First operand 2265 states and 3485 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:09,748 INFO L93 Difference]: Finished difference Result 6986 states and 10973 transitions. [2024-11-18 14:36:09,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:09,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:09,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:09,765 INFO L225 Difference]: With dead ends: 6986 [2024-11-18 14:36:09,765 INFO L226 Difference]: Without dead ends: 4736 [2024-11-18 14:36:09,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:09,770 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 769 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:09,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1986 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:36:09,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4736 states. [2024-11-18 14:36:09,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4736 to 4540. [2024-11-18 14:36:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4540 states, 4111 states have (on average 1.5521770858671855) internal successors, (6381), 4178 states have internal predecessors, (6381), 260 states have call successors, (260), 102 states have call predecessors, (260), 168 states have return successors, (516), 275 states have call predecessors, (516), 260 states have call successors, (516) [2024-11-18 14:36:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 7157 transitions. [2024-11-18 14:36:09,940 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 7157 transitions. Word has length 127 [2024-11-18 14:36:09,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:09,941 INFO L471 AbstractCegarLoop]: Abstraction has 4540 states and 7157 transitions. [2024-11-18 14:36:09,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 7157 transitions. [2024-11-18 14:36:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:09,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:09,946 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] [2024-11-18 14:36:09,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:36:09,947 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:09,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash -696448582, now seen corresponding path program 1 times [2024-11-18 14:36:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:09,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046224247] [2024-11-18 14:36:09,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:09,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:10,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:10,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046224247] [2024-11-18 14:36:10,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046224247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:10,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737822693] [2024-11-18 14:36:10,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:10,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:10,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:10,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:10,058 INFO L87 Difference]: Start difference. First operand 4540 states and 7157 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:10,809 INFO L93 Difference]: Finished difference Result 14393 states and 23367 transitions. [2024-11-18 14:36:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:10,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:10,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:10,847 INFO L225 Difference]: With dead ends: 14393 [2024-11-18 14:36:10,847 INFO L226 Difference]: Without dead ends: 9868 [2024-11-18 14:36:10,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:10,858 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 764 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:10,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1974 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:36:10,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9868 states. [2024-11-18 14:36:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9868 to 9603. [2024-11-18 14:36:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9603 states, 8692 states have (on average 1.5781178094799815) internal successors, (13717), 8905 states have internal predecessors, (13717), 500 states have call successors, (500), 198 states have call predecessors, (500), 410 states have return successors, (1524), 531 states have call predecessors, (1524), 500 states have call successors, (1524) [2024-11-18 14:36:11,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9603 states to 9603 states and 15741 transitions. [2024-11-18 14:36:11,173 INFO L78 Accepts]: Start accepts. Automaton has 9603 states and 15741 transitions. Word has length 127 [2024-11-18 14:36:11,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:11,174 INFO L471 AbstractCegarLoop]: Abstraction has 9603 states and 15741 transitions. [2024-11-18 14:36:11,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:11,175 INFO L276 IsEmpty]: Start isEmpty. Operand 9603 states and 15741 transitions. [2024-11-18 14:36:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:11,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:11,185 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] [2024-11-18 14:36:11,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:36:11,185 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:11,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash 692845432, now seen corresponding path program 1 times [2024-11-18 14:36:11,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:11,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787448991] [2024-11-18 14:36:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:11,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:11,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:11,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787448991] [2024-11-18 14:36:11,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787448991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:11,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:11,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:11,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263923519] [2024-11-18 14:36:11,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:11,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:11,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:11,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:11,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:11,346 INFO L87 Difference]: Start difference. First operand 9603 states and 15741 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:12,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:12,330 INFO L93 Difference]: Finished difference Result 31084 states and 53157 transitions. [2024-11-18 14:36:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:12,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:12,428 INFO L225 Difference]: With dead ends: 31084 [2024-11-18 14:36:12,429 INFO L226 Difference]: Without dead ends: 21496 [2024-11-18 14:36:12,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:12,466 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 789 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:12,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 1375 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:36:12,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21496 states. [2024-11-18 14:36:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21496 to 21106. [2024-11-18 14:36:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21106 states, 19069 states have (on average 1.6068488122082962) internal successors, (30641), 19736 states have internal predecessors, (30641), 980 states have call successors, (980), 390 states have call predecessors, (980), 1056 states have return successors, (5076), 1043 states have call predecessors, (5076), 980 states have call successors, (5076) [2024-11-18 14:36:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21106 states to 21106 states and 36697 transitions. [2024-11-18 14:36:13,520 INFO L78 Accepts]: Start accepts. Automaton has 21106 states and 36697 transitions. Word has length 127 [2024-11-18 14:36:13,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:13,520 INFO L471 AbstractCegarLoop]: Abstraction has 21106 states and 36697 transitions. [2024-11-18 14:36:13,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 21106 states and 36697 transitions. [2024-11-18 14:36:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:13,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:13,540 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] [2024-11-18 14:36:13,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:36:13,541 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:13,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:13,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1340548614, now seen corresponding path program 1 times [2024-11-18 14:36:13,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:13,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911428478] [2024-11-18 14:36:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:13,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:13,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:13,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911428478] [2024-11-18 14:36:13,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911428478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:13,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:13,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:13,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660162342] [2024-11-18 14:36:13,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:13,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:13,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:13,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:13,647 INFO L87 Difference]: Start difference. First operand 21106 states and 36697 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:15,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:15,534 INFO L93 Difference]: Finished difference Result 72467 states and 132956 transitions. [2024-11-18 14:36:15,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:15,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:15,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:15,759 INFO L225 Difference]: With dead ends: 72467 [2024-11-18 14:36:15,759 INFO L226 Difference]: Without dead ends: 51376 [2024-11-18 14:36:15,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:15,845 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 817 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:15,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1930 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:36:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51376 states. [2024-11-18 14:36:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51376 to 47501. [2024-11-18 14:36:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47501 states, 42790 states have (on average 1.638163122224819) internal successors, (70097), 44851 states have internal predecessors, (70097), 1876 states have call successors, (1876), 774 states have call predecessors, (1876), 2834 states have return successors, (18260), 2003 states have call predecessors, (18260), 1876 states have call successors, (18260) [2024-11-18 14:36:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47501 states to 47501 states and 90233 transitions. [2024-11-18 14:36:17,816 INFO L78 Accepts]: Start accepts. Automaton has 47501 states and 90233 transitions. Word has length 127 [2024-11-18 14:36:17,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:17,817 INFO L471 AbstractCegarLoop]: Abstraction has 47501 states and 90233 transitions. [2024-11-18 14:36:17,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:17,817 INFO L276 IsEmpty]: Start isEmpty. Operand 47501 states and 90233 transitions. [2024-11-18 14:36:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:17,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:17,849 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] [2024-11-18 14:36:17,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:36:17,849 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:17,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:17,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1087710008, now seen corresponding path program 1 times [2024-11-18 14:36:17,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:17,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048788022] [2024-11-18 14:36:17,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:17,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:17,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:17,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048788022] [2024-11-18 14:36:17,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048788022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:17,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:17,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:36:17,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476187419] [2024-11-18 14:36:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:17,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:36:17,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:36:17,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:36:17,943 INFO L87 Difference]: Start difference. First operand 47501 states and 90233 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:20,693 INFO L93 Difference]: Finished difference Result 108121 states and 216787 transitions. [2024-11-18 14:36:20,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:36:20,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:20,980 INFO L225 Difference]: With dead ends: 108121 [2024-11-18 14:36:20,980 INFO L226 Difference]: Without dead ends: 60635 [2024-11-18 14:36:21,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:21,221 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 503 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:21,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 709 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:36:21,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60635 states. [2024-11-18 14:36:24,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60635 to 47501. [2024-11-18 14:36:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47501 states, 42790 states have (on average 1.635148399158682) internal successors, (69968), 44851 states have internal predecessors, (69968), 1876 states have call successors, (1876), 774 states have call predecessors, (1876), 2834 states have return successors, (18260), 2003 states have call predecessors, (18260), 1876 states have call successors, (18260) [2024-11-18 14:36:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47501 states to 47501 states and 90104 transitions. [2024-11-18 14:36:25,200 INFO L78 Accepts]: Start accepts. Automaton has 47501 states and 90104 transitions. Word has length 127 [2024-11-18 14:36:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:25,201 INFO L471 AbstractCegarLoop]: Abstraction has 47501 states and 90104 transitions. [2024-11-18 14:36:25,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 47501 states and 90104 transitions. [2024-11-18 14:36:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:25,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:25,231 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] [2024-11-18 14:36:25,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:36:25,231 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:25,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:25,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1309760522, now seen corresponding path program 1 times [2024-11-18 14:36:25,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:25,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144752141] [2024-11-18 14:36:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:25,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:25,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:25,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144752141] [2024-11-18 14:36:25,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144752141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:25,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:25,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:25,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623693534] [2024-11-18 14:36:25,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:25,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:25,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:25,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:25,336 INFO L87 Difference]: Start difference. First operand 47501 states and 90104 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:29,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:36:29,440 INFO L93 Difference]: Finished difference Result 157194 states and 324399 transitions. [2024-11-18 14:36:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:36:29,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 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 127 [2024-11-18 14:36:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:36:30,016 INFO L225 Difference]: With dead ends: 157194 [2024-11-18 14:36:30,016 INFO L226 Difference]: Without dead ends: 109708 [2024-11-18 14:36:30,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:36:30,131 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 771 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:36:30,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1885 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:36:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109708 states. [2024-11-18 14:36:36,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109708 to 105266. [2024-11-18 14:36:36,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105266 states, 93813 states have (on average 1.646424269557524) internal successors, (154456), 100120 states have internal predecessors, (154456), 3604 states have call successors, (3604), 1542 states have call predecessors, (3604), 7848 states have return successors, (69140), 3859 states have call predecessors, (69140), 3604 states have call successors, (69140) [2024-11-18 14:36:37,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105266 states to 105266 states and 227200 transitions. [2024-11-18 14:36:38,022 INFO L78 Accepts]: Start accepts. Automaton has 105266 states and 227200 transitions. Word has length 127 [2024-11-18 14:36:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:36:38,023 INFO L471 AbstractCegarLoop]: Abstraction has 105266 states and 227200 transitions. [2024-11-18 14:36:38,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:36:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 105266 states and 227200 transitions. [2024-11-18 14:36:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:36:38,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:36:38,093 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] [2024-11-18 14:36:38,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:36:38,094 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:36:38,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:36:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash -278719624, now seen corresponding path program 1 times [2024-11-18 14:36:38,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:36:38,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361560742] [2024-11-18 14:36:38,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:36:38,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:36:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:36:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:36:38,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:36:38,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361560742] [2024-11-18 14:36:38,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361560742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:36:38,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:36:38,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:36:38,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381885747] [2024-11-18 14:36:38,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:36:38,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:36:38,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:36:38,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:36:38,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:36:38,202 INFO L87 Difference]: Start difference. First operand 105266 states and 227200 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)