./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 8be7027f 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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:10:17,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:10:17,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:10:17,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:10:17,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:10:17,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:10:17,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:10:17,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:10:17,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:10:17,717 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:10:17,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:10:17,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:10:17,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:10:17,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:10:17,719 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:10:17,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:10:17,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:10:17,720 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:10:17,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:10:17,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:10:17,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:10:17,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:10:17,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:10:17,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:10:17,723 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:10:17,723 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:10:17,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:10:17,724 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:10:17,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:10:17,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:10:17,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:10:17,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:10:17,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:10:17,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:10:17,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:10:17,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:10:17,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:10:17,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:10:17,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:10:17,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:10:17,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:10:17,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:10:17,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022987cd4c8c671e376c5c3e5a08e2f1b98444b4d5d48bc73787bff74aa0de0f [2024-11-11 21:10:18,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:10:18,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:10:18,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:10:18,045 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:10:18,045 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:10:18,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-11-11 21:10:19,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:10:19,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:10:19,751 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-11-11 21:10:19,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059fdff34/d337d2c076e9434cb71f40c376397804/FLAGd55c46985 [2024-11-11 21:10:19,782 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059fdff34/d337d2c076e9434cb71f40c376397804 [2024-11-11 21:10:19,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:10:19,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:10:19,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:10:19,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:10:19,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:10:19,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:10:19" (1/1) ... [2024-11-11 21:10:19,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d6e1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:19, skipping insertion in model container [2024-11-11 21:10:19,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:10:19" (1/1) ... [2024-11-11 21:10:19,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:10:20,032 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] [2024-11-11 21:10:20,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:10:20,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:10:20,202 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] [2024-11-11 21:10:20,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:10:20,305 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:10:20,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20 WrapperNode [2024-11-11 21:10:20,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:10:20,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:10:20,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:10:20,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:10:20,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,375 INFO L138 Inliner]: procedures = 42, calls = 51, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 564 [2024-11-11 21:10:20,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:10:20,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:10:20,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:10:20,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:10:20,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,425 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]. [2024-11-11 21:10:20,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:10:20,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:10:20,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:10:20,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:10:20,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (1/1) ... [2024-11-11 21:10:20,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:10:20,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:10:20,516 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) [2024-11-11 21:10:20,521 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 [2024-11-11 21:10:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:10:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 21:10:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 21:10:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 21:10:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 21:10:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 21:10:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 21:10:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 21:10:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 21:10:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 21:10:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 21:10:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:10:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 21:10:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 21:10:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:10:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:10:20,734 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:10:20,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:10:21,370 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-11 21:10:21,370 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:10:21,391 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:10:21,393 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-11 21:10:21,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:10:21 BoogieIcfgContainer [2024-11-11 21:10:21,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:10:21,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:10:21,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:10:21,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:10:21,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:10:19" (1/3) ... [2024-11-11 21:10:21,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4096d7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:10:21, skipping insertion in model container [2024-11-11 21:10:21,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:20" (2/3) ... [2024-11-11 21:10:21,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4096d7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:10:21, skipping insertion in model container [2024-11-11 21:10:21,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:10:21" (3/3) ... [2024-11-11 21:10:21,403 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.07.cil.c [2024-11-11 21:10:21,417 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:10:21,418 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:10:21,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:10:21,501 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;@56594ec4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:10:21,502 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:10:21,510 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) [2024-11-11 21:10:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:21,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:21,526 INFO L218 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] [2024-11-11 21:10:21,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:21,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:21,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2130608969, now seen corresponding path program 1 times [2024-11-11 21:10:21,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:21,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904191132] [2024-11-11 21:10:21,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:21,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:22,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:22,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:22,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:22,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:22,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:22,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:22,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904191132] [2024-11-11 21:10:22,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904191132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:22,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:22,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:10:22,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111637858] [2024-11-11 21:10:22,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:22,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:10:22,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:22,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:10:22,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:10:22,260 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 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:23,536 INFO L93 Difference]: Finished difference Result 596 states and 962 transitions. [2024-11-11 21:10:23,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:10:23,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 3 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 [2024-11-11 21:10:23,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:23,559 INFO L225 Difference]: With dead ends: 596 [2024-11-11 21:10:23,559 INFO L226 Difference]: Without dead ends: 341 [2024-11-11 21:10:23,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:10:23,574 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 653 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:23,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 520 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 21:10:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-11 21:10:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 256. [2024-11-11 21:10:23,654 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) [2024-11-11 21:10:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 388 transitions. [2024-11-11 21:10:23,658 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 388 transitions. Word has length 127 [2024-11-11 21:10:23,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:23,659 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 388 transitions. [2024-11-11 21:10:23,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 388 transitions. [2024-11-11 21:10:23,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:23,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:23,663 INFO L218 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] [2024-11-11 21:10:23,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:10:23,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:23,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1797965831, now seen corresponding path program 1 times [2024-11-11 21:10:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:23,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758335552] [2024-11-11 21:10:23,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:23,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:23,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:23,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:24,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:24,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758335552] [2024-11-11 21:10:24,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758335552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:24,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:24,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:10:24,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149116593] [2024-11-11 21:10:24,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:24,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:10:24,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:24,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:10:24,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:10:24,064 INFO L87 Difference]: Start difference. First operand 256 states and 388 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:25,918 INFO L93 Difference]: Finished difference Result 915 states and 1431 transitions. [2024-11-11 21:10:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 21:10:25,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:25,927 INFO L225 Difference]: With dead ends: 915 [2024-11-11 21:10:25,928 INFO L226 Difference]: Without dead ends: 674 [2024-11-11 21:10:25,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:10:25,932 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 974 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:25,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 869 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 21:10:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-11 21:10:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 504. [2024-11-11 21:10:25,994 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, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2024-11-11 21:10:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 769 transitions. [2024-11-11 21:10:25,998 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 769 transitions. Word has length 127 [2024-11-11 21:10:25,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:26,000 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 769 transitions. [2024-11-11 21:10:26,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 769 transitions. [2024-11-11 21:10:26,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:26,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:26,003 INFO L218 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] [2024-11-11 21:10:26,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:10:26,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:26,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash -371549894, now seen corresponding path program 1 times [2024-11-11 21:10:26,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:26,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548357359] [2024-11-11 21:10:26,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:26,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:26,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:26,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548357359] [2024-11-11 21:10:26,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548357359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:26,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:26,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:26,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389054965] [2024-11-11 21:10:26,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:26,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:26,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:26,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:26,342 INFO L87 Difference]: Start difference. First operand 504 states and 769 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:29,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:29,144 INFO L93 Difference]: Finished difference Result 1615 states and 2506 transitions. [2024-11-11 21:10:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:29,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:29,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:29,158 INFO L225 Difference]: With dead ends: 1615 [2024-11-11 21:10:29,158 INFO L226 Difference]: Without dead ends: 1126 [2024-11-11 21:10:29,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:29,162 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 1067 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:29,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 1685 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 21:10:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-11 21:10:29,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 737. [2024-11-11 21:10:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 666 states have (on average 1.5225225225225225) internal successors, (1014), 669 states have internal predecessors, (1014), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2024-11-11 21:10:29,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1119 transitions. [2024-11-11 21:10:29,266 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1119 transitions. Word has length 127 [2024-11-11 21:10:29,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:29,267 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1119 transitions. [2024-11-11 21:10:29,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:29,267 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1119 transitions. [2024-11-11 21:10:29,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:29,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:29,270 INFO L218 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] [2024-11-11 21:10:29,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:10:29,271 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:29,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:29,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1950252024, now seen corresponding path program 1 times [2024-11-11 21:10:29,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:29,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692922053] [2024-11-11 21:10:29,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:29,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:29,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:29,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:29,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:29,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:29,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:29,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692922053] [2024-11-11 21:10:29,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692922053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:29,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:29,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:29,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017077791] [2024-11-11 21:10:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:29,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:29,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:29,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:29,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:29,506 INFO L87 Difference]: Start difference. First operand 737 states and 1119 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:32,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:32,036 INFO L93 Difference]: Finished difference Result 2486 states and 3846 transitions. [2024-11-11 21:10:32,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:32,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:32,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:32,049 INFO L225 Difference]: With dead ends: 2486 [2024-11-11 21:10:32,050 INFO L226 Difference]: Without dead ends: 1764 [2024-11-11 21:10:32,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:32,054 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1062 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 2764 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:32,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 1683 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2764 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 21:10:32,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-11 21:10:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1206. [2024-11-11 21:10:32,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1091 states have (on average 1.5169569202566453) internal successors, (1655), 1096 states have internal predecessors, (1655), 80 states have call successors, (80), 30 states have call predecessors, (80), 34 states have return successors, (93), 83 states have call predecessors, (93), 80 states have call successors, (93) [2024-11-11 21:10:32,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1828 transitions. [2024-11-11 21:10:32,160 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1828 transitions. Word has length 127 [2024-11-11 21:10:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:32,160 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1828 transitions. [2024-11-11 21:10:32,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1828 transitions. [2024-11-11 21:10:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:32,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:32,164 INFO L218 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] [2024-11-11 21:10:32,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:10:32,164 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:32,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash -191608454, now seen corresponding path program 1 times [2024-11-11 21:10:32,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:32,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285073631] [2024-11-11 21:10:32,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:32,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:32,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:32,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:32,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:32,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:32,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:32,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:32,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285073631] [2024-11-11 21:10:32,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285073631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:32,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:32,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:32,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338731710] [2024-11-11 21:10:32,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:32,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:32,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:32,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:32,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:32,397 INFO L87 Difference]: Start difference. First operand 1206 states and 1828 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:35,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:35,108 INFO L93 Difference]: Finished difference Result 4175 states and 6435 transitions. [2024-11-11 21:10:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:35,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:35,126 INFO L225 Difference]: With dead ends: 4175 [2024-11-11 21:10:35,127 INFO L226 Difference]: Without dead ends: 2984 [2024-11-11 21:10:35,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:35,135 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1061 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 2751 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:35,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1683 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2751 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 21:10:35,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2024-11-11 21:10:35,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2147. [2024-11-11 21:10:35,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2147 states, 1944 states have (on average 1.5128600823045268) internal successors, (2941), 1953 states have internal predecessors, (2941), 140 states have call successors, (140), 54 states have call predecessors, (140), 62 states have return successors, (175), 147 states have call predecessors, (175), 140 states have call successors, (175) [2024-11-11 21:10:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 3256 transitions. [2024-11-11 21:10:35,316 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 3256 transitions. Word has length 127 [2024-11-11 21:10:35,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:35,317 INFO L471 AbstractCegarLoop]: Abstraction has 2147 states and 3256 transitions. [2024-11-11 21:10:35,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:35,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 3256 transitions. [2024-11-11 21:10:35,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:35,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:35,322 INFO L218 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] [2024-11-11 21:10:35,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:10:35,322 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:35,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:35,323 INFO L85 PathProgramCache]: Analyzing trace with hash -814890056, now seen corresponding path program 1 times [2024-11-11 21:10:35,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:35,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096134656] [2024-11-11 21:10:35,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:35,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:35,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:35,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:35,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:35,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:35,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:35,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:35,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096134656] [2024-11-11 21:10:35,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096134656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:35,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:35,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:35,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528077364] [2024-11-11 21:10:35,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:35,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:35,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:35,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:35,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:35,537 INFO L87 Difference]: Start difference. First operand 2147 states and 3256 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:38,048 INFO L93 Difference]: Finished difference Result 7554 states and 11633 transitions. [2024-11-11 21:10:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:38,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:38,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:38,074 INFO L225 Difference]: With dead ends: 7554 [2024-11-11 21:10:38,074 INFO L226 Difference]: Without dead ends: 5422 [2024-11-11 21:10:38,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:38,083 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1060 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 2738 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:38,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 1683 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2738 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 21:10:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2024-11-11 21:10:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 4036. [2024-11-11 21:10:38,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3657 states have (on average 1.5102543068088596) internal successors, (5523), 3674 states have internal predecessors, (5523), 260 states have call successors, (260), 102 states have call predecessors, (260), 118 states have return successors, (357), 275 states have call predecessors, (357), 260 states have call successors, (357) [2024-11-11 21:10:38,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 6140 transitions. [2024-11-11 21:10:38,331 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 6140 transitions. Word has length 127 [2024-11-11 21:10:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:38,332 INFO L471 AbstractCegarLoop]: Abstraction has 4036 states and 6140 transitions. [2024-11-11 21:10:38,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 6140 transitions. [2024-11-11 21:10:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:38,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:38,339 INFO L218 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] [2024-11-11 21:10:38,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:10:38,339 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:38,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash -696448582, now seen corresponding path program 1 times [2024-11-11 21:10:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850543620] [2024-11-11 21:10:38,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:38,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:38,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:38,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:38,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:38,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:38,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:38,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850543620] [2024-11-11 21:10:38,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850543620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:38,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:38,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:38,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984400551] [2024-11-11 21:10:38,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:38,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:38,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:38,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:38,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:38,579 INFO L87 Difference]: Start difference. First operand 4036 states and 6140 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:41,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:41,109 INFO L93 Difference]: Finished difference Result 14313 states and 22091 transitions. [2024-11-11 21:10:41,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:41,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:41,169 INFO L225 Difference]: With dead ends: 14313 [2024-11-11 21:10:41,170 INFO L226 Difference]: Without dead ends: 10292 [2024-11-11 21:10:41,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:41,235 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1059 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:41,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 1683 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2725 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:10:41,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10292 states. [2024-11-11 21:10:41,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10292 to 7829. [2024-11-11 21:10:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7829 states, 7098 states have (on average 1.508734854888701) internal successors, (10709), 7131 states have internal predecessors, (10709), 500 states have call successors, (500), 198 states have call predecessors, (500), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2024-11-11 21:10:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7829 states to 7829 states and 11984 transitions. [2024-11-11 21:10:41,748 INFO L78 Accepts]: Start accepts. Automaton has 7829 states and 11984 transitions. Word has length 127 [2024-11-11 21:10:41,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:41,750 INFO L471 AbstractCegarLoop]: Abstraction has 7829 states and 11984 transitions. [2024-11-11 21:10:41,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7829 states and 11984 transitions. [2024-11-11 21:10:41,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:41,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:41,765 INFO L218 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] [2024-11-11 21:10:41,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:10:41,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:41,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:41,767 INFO L85 PathProgramCache]: Analyzing trace with hash 692845432, now seen corresponding path program 1 times [2024-11-11 21:10:41,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:41,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857741861] [2024-11-11 21:10:41,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:41,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:41,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:41,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:41,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:41,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:41,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:41,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857741861] [2024-11-11 21:10:41,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857741861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:41,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:41,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:41,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315271969] [2024-11-11 21:10:41,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:41,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:41,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:41,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:41,949 INFO L87 Difference]: Start difference. First operand 7829 states and 11984 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:44,747 INFO L93 Difference]: Finished difference Result 27832 states and 43201 transitions. [2024-11-11 21:10:44,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:44,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:44,845 INFO L225 Difference]: With dead ends: 27832 [2024-11-11 21:10:44,845 INFO L226 Difference]: Without dead ends: 20018 [2024-11-11 21:10:44,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:44,886 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 1113 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 2481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:44,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 1068 Invalid, 2481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 21:10:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20018 states. [2024-11-11 21:10:45,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20018 to 15446. [2024-11-11 21:10:45,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15446 states, 14011 states have (on average 1.5078866604810506) internal successors, (21127), 14076 states have internal predecessors, (21127), 980 states have call successors, (980), 390 states have call predecessors, (980), 454 states have return successors, (1773), 1043 states have call predecessors, (1773), 980 states have call successors, (1773) [2024-11-11 21:10:46,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15446 states to 15446 states and 23880 transitions. [2024-11-11 21:10:46,062 INFO L78 Accepts]: Start accepts. Automaton has 15446 states and 23880 transitions. Word has length 127 [2024-11-11 21:10:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:46,062 INFO L471 AbstractCegarLoop]: Abstraction has 15446 states and 23880 transitions. [2024-11-11 21:10:46,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 15446 states and 23880 transitions. [2024-11-11 21:10:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:46,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:46,092 INFO L218 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] [2024-11-11 21:10:46,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:10:46,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:46,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:46,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1340548614, now seen corresponding path program 1 times [2024-11-11 21:10:46,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:46,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044577341] [2024-11-11 21:10:46,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:46,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:46,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:46,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044577341] [2024-11-11 21:10:46,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044577341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:46,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:46,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:46,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418314377] [2024-11-11 21:10:46,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:46,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:46,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:46,425 INFO L87 Difference]: Start difference. First operand 15446 states and 23880 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:50,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:50,720 INFO L93 Difference]: Finished difference Result 61015 states and 95241 transitions. [2024-11-11 21:10:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 21:10:50,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:50,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:50,936 INFO L225 Difference]: With dead ends: 61015 [2024-11-11 21:10:50,936 INFO L226 Difference]: Without dead ends: 45584 [2024-11-11 21:10:51,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-11 21:10:51,012 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 1126 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 2711 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 2767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:51,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 1659 Invalid, 2767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2711 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 21:10:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45584 states. [2024-11-11 21:10:53,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45584 to 30487. [2024-11-11 21:10:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30487 states, 27708 states have (on average 1.5109354699003898) internal successors, (41865), 27837 states have internal predecessors, (41865), 1876 states have call successors, (1876), 774 states have call predecessors, (1876), 902 states have return successors, (4191), 2003 states have call predecessors, (4191), 1876 states have call successors, (4191) [2024-11-11 21:10:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30487 states to 30487 states and 47932 transitions. [2024-11-11 21:10:53,497 INFO L78 Accepts]: Start accepts. Automaton has 30487 states and 47932 transitions. Word has length 127 [2024-11-11 21:10:53,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:53,498 INFO L471 AbstractCegarLoop]: Abstraction has 30487 states and 47932 transitions. [2024-11-11 21:10:53,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:53,498 INFO L276 IsEmpty]: Start isEmpty. Operand 30487 states and 47932 transitions. [2024-11-11 21:10:53,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:53,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:53,555 INFO L218 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] [2024-11-11 21:10:53,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:10:53,556 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:53,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:53,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1087710008, now seen corresponding path program 1 times [2024-11-11 21:10:53,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:53,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450298814] [2024-11-11 21:10:53,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:53,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:53,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450298814] [2024-11-11 21:10:53,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450298814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:53,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:53,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:53,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892440347] [2024-11-11 21:10:53,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:53,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:53,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:53,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:53,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:53,749 INFO L87 Difference]: Start difference. First operand 30487 states and 47932 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:57,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:57,017 INFO L93 Difference]: Finished difference Result 69773 states and 111979 transitions. [2024-11-11 21:10:57,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:10:57,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:10:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:57,198 INFO L225 Difference]: With dead ends: 69773 [2024-11-11 21:10:57,198 INFO L226 Difference]: Without dead ends: 39301 [2024-11-11 21:10:57,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:10:57,288 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 829 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:57,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 697 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 21:10:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39301 states. [2024-11-11 21:10:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39301 to 30487. [2024-11-11 21:10:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30487 states, 27708 states have (on average 1.5062797747942833) internal successors, (41736), 27837 states have internal predecessors, (41736), 1876 states have call successors, (1876), 774 states have call predecessors, (1876), 902 states have return successors, (4191), 2003 states have call predecessors, (4191), 1876 states have call successors, (4191) [2024-11-11 21:10:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30487 states to 30487 states and 47803 transitions. [2024-11-11 21:10:59,233 INFO L78 Accepts]: Start accepts. Automaton has 30487 states and 47803 transitions. Word has length 127 [2024-11-11 21:10:59,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:59,234 INFO L471 AbstractCegarLoop]: Abstraction has 30487 states and 47803 transitions. [2024-11-11 21:10:59,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:59,234 INFO L276 IsEmpty]: Start isEmpty. Operand 30487 states and 47803 transitions. [2024-11-11 21:10:59,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:10:59,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:59,561 INFO L218 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] [2024-11-11 21:10:59,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:10:59,562 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:59,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:59,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1309760522, now seen corresponding path program 1 times [2024-11-11 21:10:59,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:59,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976132280] [2024-11-11 21:10:59,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:59,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:59,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:59,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:10:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:59,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:10:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:59,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:10:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:59,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:10:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:59,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:59,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976132280] [2024-11-11 21:10:59,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976132280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:59,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:59,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:59,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896350378] [2024-11-11 21:10:59,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:59,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:59,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:59,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:59,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:59,741 INFO L87 Difference]: Start difference. First operand 30487 states and 47803 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:11:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:11:05,706 INFO L93 Difference]: Finished difference Result 114834 states and 181891 transitions. [2024-11-11 21:11:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 21:11:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:11:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:11:06,298 INFO L225 Difference]: With dead ends: 114834 [2024-11-11 21:11:06,298 INFO L226 Difference]: Without dead ends: 84362 [2024-11-11 21:11:06,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-11 21:11:06,501 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 1084 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:11:06,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1659 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 21:11:06,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84362 states. [2024-11-11 21:11:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84362 to 60826. [2024-11-11 21:11:10,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60826 states, 55423 states have (on average 1.5083629540082637) internal successors, (83598), 55680 states have internal predecessors, (83598), 3604 states have call successors, (3604), 1542 states have call predecessors, (3604), 1798 states have return successors, (10421), 3859 states have call predecessors, (10421), 3604 states have call successors, (10421) [2024-11-11 21:11:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60826 states to 60826 states and 97623 transitions. [2024-11-11 21:11:10,435 INFO L78 Accepts]: Start accepts. Automaton has 60826 states and 97623 transitions. Word has length 127 [2024-11-11 21:11:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:11:10,436 INFO L471 AbstractCegarLoop]: Abstraction has 60826 states and 97623 transitions. [2024-11-11 21:11:10,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:11:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand 60826 states and 97623 transitions. [2024-11-11 21:11:10,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:11:10,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:11:10,569 INFO L218 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] [2024-11-11 21:11:10,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:11:10,569 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:11:10,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:11:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash -278719624, now seen corresponding path program 1 times [2024-11-11 21:11:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:11:10,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682906877] [2024-11-11 21:11:10,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:11:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:11:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:10,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:11:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:10,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:11:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:10,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:11:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:10,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:11:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:10,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:11:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:11:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:11:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682906877] [2024-11-11 21:11:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682906877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:11:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:11:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:11:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129586323] [2024-11-11 21:11:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:11:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:11:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:11:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:11:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:11:10,776 INFO L87 Difference]: Start difference. First operand 60826 states and 97623 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:11:20,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:11:20,925 INFO L93 Difference]: Finished difference Result 224403 states and 364125 transitions. [2024-11-11 21:11:20,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 21:11:20,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2024-11-11 21:11:20,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:11:21,663 INFO L225 Difference]: With dead ends: 224403 [2024-11-11 21:11:21,663 INFO L226 Difference]: Without dead ends: 163592 [2024-11-11 21:11:21,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-11 21:11:21,847 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 1146 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 21:11:21,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1659 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 21:11:21,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163592 states. [2024-11-11 21:11:29,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163592 to 121371. [2024-11-11 21:11:29,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121371 states, 110848 states have (on average 1.5105369515011546) internal successors, (167440), 111361 states have internal predecessors, (167440), 6932 states have call successors, (6932), 3078 states have call predecessors, (6932), 3590 states have return successors, (27127), 7443 states have call predecessors, (27127), 6932 states have call successors, (27127)