./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-dev-4a390ef-m [2024-10-24 01:17:19,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:17:19,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:17:19,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:17:19,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:17:19,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:17:19,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:17:19,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:17:19,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:17:19,680 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:17:19,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:17:19,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:17:19,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:17:19,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:17:19,683 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:17:19,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:17:19,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:17:19,684 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:17:19,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:17:19,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:17:19,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:17:19,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:17:19,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:17:19,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:17:19,690 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:17:19,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:17:19,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:17:19,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:17:19,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:17:19,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:17:19,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:17:19,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:17:19,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:19,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:17:19,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:17:19,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:17:19,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:17:19,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:17:19,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:17:19,694 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:17:19,694 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:17:19,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:17:19,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022987cd4c8c671e376c5c3e5a08e2f1b98444b4d5d48bc73787bff74aa0de0f [2024-10-24 01:17:19,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:17:19,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:17:19,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:17:19,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:17:19,998 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:17:19,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-10-24 01:17:21,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:17:21,687 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:17:21,690 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.07.cil.c [2024-10-24 01:17:21,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71214c4b5/9865cd472deb43cf821a97a4f38151ee/FLAGfdbcf86f3 [2024-10-24 01:17:21,724 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71214c4b5/9865cd472deb43cf821a97a4f38151ee [2024-10-24 01:17:21,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:17:21,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:17:21,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:21,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:17:21,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:17:21,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:21" (1/1) ... [2024-10-24 01:17:21,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0adb42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:21, skipping insertion in model container [2024-10-24 01:17:21,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:21" (1/1) ... [2024-10-24 01:17:21,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:17:21,975 WARN L248 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] [2024-10-24 01:17:22,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:22,080 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:17:22,092 WARN L248 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] [2024-10-24 01:17:22,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:22,162 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:17:22,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22 WrapperNode [2024-10-24 01:17:22,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:22,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:22,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:17:22,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:17:22,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,218 INFO L138 Inliner]: procedures = 42, calls = 51, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 564 [2024-10-24 01:17:22,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:22,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:17:22,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:17:22,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:17:22,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,251 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]. [2024-10-24 01:17:22,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:17:22,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:17:22,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:17:22,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:17:22,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (1/1) ... [2024-10-24 01:17:22,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:22,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:17:22,321 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) [2024-10-24 01:17:22,328 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 [2024-10-24 01:17:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:17:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 01:17:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 01:17:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 01:17:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 01:17:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 01:17:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 01:17:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 01:17:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 01:17:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 01:17:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 01:17:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:17:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 01:17:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 01:17:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:17:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:17:22,495 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:17:22,497 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:17:23,172 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-10-24 01:17:23,172 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:17:23,243 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:17:23,243 INFO L314 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-24 01:17:23,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:23 BoogieIcfgContainer [2024-10-24 01:17:23,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:17:23,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:17:23,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:17:23,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:17:23,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:17:21" (1/3) ... [2024-10-24 01:17:23,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee1b0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:23, skipping insertion in model container [2024-10-24 01:17:23,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:22" (2/3) ... [2024-10-24 01:17:23,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee1b0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:23, skipping insertion in model container [2024-10-24 01:17:23,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:23" (3/3) ... [2024-10-24 01:17:23,256 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.07.cil.c [2024-10-24 01:17:23,275 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:17:23,275 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:17:23,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:17:23,354 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;@4826b0b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:17:23,354 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:17:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 200 states have (on average 1.72) internal successors, (344), 202 states have internal predecessors, (344), 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) [2024-10-24 01:17:23,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:23,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:23,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:23,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:23,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash -934557041, now seen corresponding path program 1 times [2024-10-24 01:17:23,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:23,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579933208] [2024-10-24 01:17:23,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:23,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:23,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:23,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:23,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:23,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:23,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:23,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579933208] [2024-10-24 01:17:23,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579933208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:23,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:23,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:17:23,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652478880] [2024-10-24 01:17:23,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:23,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:17:23,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:24,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:17:24,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:17:24,008 INFO L87 Difference]: Start difference. First operand has 228 states, 200 states have (on average 1.72) internal successors, (344), 202 states have internal predecessors, (344), 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 20.8) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-10-24 01:17:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:25,403 INFO L93 Difference]: Finished difference Result 526 states and 892 transitions. [2024-10-24 01:17:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:17:25,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 3 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:25,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:25,421 INFO L225 Difference]: With dead ends: 526 [2024-10-24 01:17:25,421 INFO L226 Difference]: Without dead ends: 304 [2024-10-24 01:17:25,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:17:25,434 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 605 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:25,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 406 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:17:25,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-24 01:17:25,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 226. [2024-10-24 01:17:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 199 states have (on average 1.5979899497487438) internal successors, (318), 200 states have internal predecessors, (318), 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) [2024-10-24 01:17:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 358 transitions. [2024-10-24 01:17:25,519 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 358 transitions. Word has length 114 [2024-10-24 01:17:25,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:25,520 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 358 transitions. [2024-10-24 01:17:25,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-10-24 01:17:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 358 transitions. [2024-10-24 01:17:25,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:25,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:25,526 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:25,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:17:25,527 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:25,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1052998515, now seen corresponding path program 1 times [2024-10-24 01:17:25,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:25,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010649744] [2024-10-24 01:17:25,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:25,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:25,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:25,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:25,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:25,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:25,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:25,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:25,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010649744] [2024-10-24 01:17:25,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010649744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:25,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:25,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:17:25,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266101420] [2024-10-24 01:17:25,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:25,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:17:25,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:25,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:17:25,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:17:25,876 INFO L87 Difference]: Start difference. First operand 226 states and 358 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-24 01:17:27,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:27,635 INFO L93 Difference]: Finished difference Result 816 states and 1332 transitions. [2024-10-24 01:17:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:17:27,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:27,641 INFO L225 Difference]: With dead ends: 816 [2024-10-24 01:17:27,641 INFO L226 Difference]: Without dead ends: 603 [2024-10-24 01:17:27,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:27,644 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 911 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:27,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 678 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 01:17:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-10-24 01:17:27,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 448. [2024-10-24 01:17:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 399 states have (on average 1.6040100250626566) internal successors, (640), 401 states have internal predecessors, (640), 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) [2024-10-24 01:17:27,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 713 transitions. [2024-10-24 01:17:27,707 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 713 transitions. Word has length 114 [2024-10-24 01:17:27,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:27,708 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 713 transitions. [2024-10-24 01:17:27,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-24 01:17:27,708 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 713 transitions. [2024-10-24 01:17:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:27,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:27,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:27,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:17:27,711 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:27,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:27,711 INFO L85 PathProgramCache]: Analyzing trace with hash -34389012, now seen corresponding path program 1 times [2024-10-24 01:17:27,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:27,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529956562] [2024-10-24 01:17:27,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:27,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:27,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:27,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:27,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:27,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:28,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:28,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:28,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:28,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529956562] [2024-10-24 01:17:28,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529956562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:28,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:28,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:28,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724179319] [2024-10-24 01:17:28,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:28,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:28,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:28,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:28,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:28,014 INFO L87 Difference]: Start difference. First operand 448 states and 713 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:30,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:30,816 INFO L93 Difference]: Finished difference Result 1442 states and 2333 transitions. [2024-10-24 01:17:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:30,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:30,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:30,829 INFO L225 Difference]: With dead ends: 1442 [2024-10-24 01:17:30,829 INFO L226 Difference]: Without dead ends: 1007 [2024-10-24 01:17:30,831 INFO L431 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 [2024-10-24 01:17:30,834 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 998 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 2841 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:30,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 1293 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2841 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 01:17:30,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-10-24 01:17:30,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 655. [2024-10-24 01:17:30,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 584 states have (on average 1.595890410958904) internal successors, (932), 587 states have internal predecessors, (932), 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) [2024-10-24 01:17:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1037 transitions. [2024-10-24 01:17:30,910 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1037 transitions. Word has length 114 [2024-10-24 01:17:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:30,912 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1037 transitions. [2024-10-24 01:17:30,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1037 transitions. [2024-10-24 01:17:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:30,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:30,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:30,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:17:30,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:30,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1566682094, now seen corresponding path program 1 times [2024-10-24 01:17:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:30,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766300700] [2024-10-24 01:17:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:31,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:31,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766300700] [2024-10-24 01:17:31,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766300700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:31,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:31,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:31,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529725592] [2024-10-24 01:17:31,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:31,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:31,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:31,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:31,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:31,138 INFO L87 Difference]: Start difference. First operand 655 states and 1037 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:32,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:32,179 INFO L93 Difference]: Finished difference Result 1562 states and 2522 transitions. [2024-10-24 01:17:32,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:32,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:32,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:32,187 INFO L225 Difference]: With dead ends: 1562 [2024-10-24 01:17:32,187 INFO L226 Difference]: Without dead ends: 920 [2024-10-24 01:17:32,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:32,192 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 766 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:32,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 545 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:17:32,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-10-24 01:17:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 655. [2024-10-24 01:17:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 584 states have (on average 1.5907534246575343) internal successors, (929), 587 states have internal predecessors, (929), 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) [2024-10-24 01:17:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1034 transitions. [2024-10-24 01:17:32,247 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1034 transitions. Word has length 114 [2024-10-24 01:17:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:32,248 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1034 transitions. [2024-10-24 01:17:32,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:32,248 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1034 transitions. [2024-10-24 01:17:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:32,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:32,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:32,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:17:32,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:32,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:32,251 INFO L85 PathProgramCache]: Analyzing trace with hash 509950892, now seen corresponding path program 1 times [2024-10-24 01:17:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:32,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124941364] [2024-10-24 01:17:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:32,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:32,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:32,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:32,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124941364] [2024-10-24 01:17:32,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124941364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:32,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:32,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:32,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298245797] [2024-10-24 01:17:32,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:32,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:32,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:32,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:32,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:32,433 INFO L87 Difference]: Start difference. First operand 655 states and 1034 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:33,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:33,516 INFO L93 Difference]: Finished difference Result 1558 states and 2505 transitions. [2024-10-24 01:17:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:33,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:33,524 INFO L225 Difference]: With dead ends: 1558 [2024-10-24 01:17:33,524 INFO L226 Difference]: Without dead ends: 916 [2024-10-24 01:17:33,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:33,528 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 764 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:33,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 545 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:17:33,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2024-10-24 01:17:33,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 655. [2024-10-24 01:17:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 584 states have (on average 1.5856164383561644) internal successors, (926), 587 states have internal predecessors, (926), 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) [2024-10-24 01:17:33,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1031 transitions. [2024-10-24 01:17:33,577 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1031 transitions. Word has length 114 [2024-10-24 01:17:33,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:33,577 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1031 transitions. [2024-10-24 01:17:33,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:33,578 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1031 transitions. [2024-10-24 01:17:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:33,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:33,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:33,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:17:33,582 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:33,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:33,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1861336110, now seen corresponding path program 1 times [2024-10-24 01:17:33,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:33,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701334426] [2024-10-24 01:17:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:33,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:33,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:33,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701334426] [2024-10-24 01:17:33,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701334426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:33,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:33,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:33,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193313287] [2024-10-24 01:17:33,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:33,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:33,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:33,814 INFO L87 Difference]: Start difference. First operand 655 states and 1031 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:34,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:34,776 INFO L93 Difference]: Finished difference Result 1554 states and 2488 transitions. [2024-10-24 01:17:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:34,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:34,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:34,783 INFO L225 Difference]: With dead ends: 1554 [2024-10-24 01:17:34,783 INFO L226 Difference]: Without dead ends: 912 [2024-10-24 01:17:34,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:34,787 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 762 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:34,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 545 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 01:17:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-10-24 01:17:34,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 655. [2024-10-24 01:17:34,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 584 states have (on average 1.5804794520547945) internal successors, (923), 587 states have internal predecessors, (923), 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) [2024-10-24 01:17:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1028 transitions. [2024-10-24 01:17:34,858 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1028 transitions. Word has length 114 [2024-10-24 01:17:34,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:34,859 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1028 transitions. [2024-10-24 01:17:34,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1028 transitions. [2024-10-24 01:17:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:34,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:34,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:34,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:17:34,862 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:34,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:34,862 INFO L85 PathProgramCache]: Analyzing trace with hash 242361196, now seen corresponding path program 1 times [2024-10-24 01:17:34,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:34,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647942993] [2024-10-24 01:17:34,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:34,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:34,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:34,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:35,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:35,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647942993] [2024-10-24 01:17:35,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647942993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:35,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:35,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:35,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789154747] [2024-10-24 01:17:35,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:35,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:35,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:35,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:35,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:35,045 INFO L87 Difference]: Start difference. First operand 655 states and 1028 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:37,147 INFO L93 Difference]: Finished difference Result 2209 states and 3515 transitions. [2024-10-24 01:17:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:37,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:37,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:37,156 INFO L225 Difference]: With dead ends: 2209 [2024-10-24 01:17:37,156 INFO L226 Difference]: Without dead ends: 1567 [2024-10-24 01:17:37,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:37,162 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 972 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:37,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1291 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 01:17:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-10-24 01:17:37,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1081. [2024-10-24 01:17:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 966 states have (on average 1.5714285714285714) internal successors, (1518), 971 states have internal predecessors, (1518), 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) [2024-10-24 01:17:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1691 transitions. [2024-10-24 01:17:37,259 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1691 transitions. Word has length 114 [2024-10-24 01:17:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:37,260 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1691 transitions. [2024-10-24 01:17:37,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:37,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1691 transitions. [2024-10-24 01:17:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:37,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:37,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:37,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:17:37,267 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:37,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:37,268 INFO L85 PathProgramCache]: Analyzing trace with hash -641147794, now seen corresponding path program 1 times [2024-10-24 01:17:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:37,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089067933] [2024-10-24 01:17:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:37,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:37,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089067933] [2024-10-24 01:17:37,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089067933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:37,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:37,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:37,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700878939] [2024-10-24 01:17:37,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:37,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:37,455 INFO L87 Difference]: Start difference. First operand 1081 states and 1691 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:38,490 INFO L93 Difference]: Finished difference Result 2528 states and 4013 transitions. [2024-10-24 01:17:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:38,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:38,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:38,499 INFO L225 Difference]: With dead ends: 2528 [2024-10-24 01:17:38,500 INFO L226 Difference]: Without dead ends: 1460 [2024-10-24 01:17:38,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:38,505 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 694 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:38,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 650 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:17:38,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2024-10-24 01:17:38,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1081. [2024-10-24 01:17:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 966 states have (on average 1.5662525879917184) internal successors, (1513), 971 states have internal predecessors, (1513), 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) [2024-10-24 01:17:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1686 transitions. [2024-10-24 01:17:38,595 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1686 transitions. Word has length 114 [2024-10-24 01:17:38,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:38,595 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1686 transitions. [2024-10-24 01:17:38,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:38,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1686 transitions. [2024-10-24 01:17:38,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:38,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:38,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:38,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:17:38,598 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:38,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:38,600 INFO L85 PathProgramCache]: Analyzing trace with hash -669648084, now seen corresponding path program 1 times [2024-10-24 01:17:38,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:38,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452325462] [2024-10-24 01:17:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:38,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:38,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452325462] [2024-10-24 01:17:38,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452325462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:38,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:38,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:38,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301492450] [2024-10-24 01:17:38,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:38,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:38,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:38,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:38,778 INFO L87 Difference]: Start difference. First operand 1081 states and 1686 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:41,176 INFO L93 Difference]: Finished difference Result 4039 states and 6376 transitions. [2024-10-24 01:17:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:17:41,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:41,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:41,193 INFO L225 Difference]: With dead ends: 4039 [2024-10-24 01:17:41,193 INFO L226 Difference]: Without dead ends: 2971 [2024-10-24 01:17:41,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:17:41,199 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 1026 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:41,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1270 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 01:17:41,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2024-10-24 01:17:41,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1923. [2024-10-24 01:17:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1724 states have (on average 1.5597447795823667) internal successors, (2689), 1733 states have internal predecessors, (2689), 136 states have call successors, (136), 54 states have call predecessors, (136), 62 states have return successors, (171), 143 states have call predecessors, (171), 136 states have call successors, (171) [2024-10-24 01:17:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2996 transitions. [2024-10-24 01:17:41,352 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2996 transitions. Word has length 114 [2024-10-24 01:17:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:41,352 INFO L471 AbstractCegarLoop]: Abstraction has 1923 states and 2996 transitions. [2024-10-24 01:17:41,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2996 transitions. [2024-10-24 01:17:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:41,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:41,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:41,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:17:41,356 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:41,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:41,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1684737198, now seen corresponding path program 1 times [2024-10-24 01:17:41,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:41,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830512427] [2024-10-24 01:17:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:41,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:41,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:41,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830512427] [2024-10-24 01:17:41,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830512427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:41,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:41,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:41,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384238586] [2024-10-24 01:17:41,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:41,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:41,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:41,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:41,566 INFO L87 Difference]: Start difference. First operand 1923 states and 2996 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:43,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:43,782 INFO L93 Difference]: Finished difference Result 7141 states and 11260 transitions. [2024-10-24 01:17:43,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:17:43,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:43,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:43,811 INFO L225 Difference]: With dead ends: 7141 [2024-10-24 01:17:43,811 INFO L226 Difference]: Without dead ends: 5231 [2024-10-24 01:17:43,820 INFO L431 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 [2024-10-24 01:17:43,821 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 1119 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:43,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1270 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 01:17:43,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2024-10-24 01:17:44,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 3617. [2024-10-24 01:17:44,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 3254 states have (on average 1.5565457897971726) internal successors, (5065), 3271 states have internal predecessors, (5065), 244 states have call successors, (244), 102 states have call predecessors, (244), 118 states have return successors, (341), 259 states have call predecessors, (341), 244 states have call successors, (341) [2024-10-24 01:17:44,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 5650 transitions. [2024-10-24 01:17:44,122 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 5650 transitions. Word has length 114 [2024-10-24 01:17:44,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:44,123 INFO L471 AbstractCegarLoop]: Abstraction has 3617 states and 5650 transitions. [2024-10-24 01:17:44,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5650 transitions. [2024-10-24 01:17:44,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:44,128 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:44,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:44,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:17:44,128 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:44,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:44,129 INFO L85 PathProgramCache]: Analyzing trace with hash 914003632, now seen corresponding path program 1 times [2024-10-24 01:17:44,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:44,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563624497] [2024-10-24 01:17:44,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:44,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:44,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:44,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563624497] [2024-10-24 01:17:44,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563624497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:44,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:44,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:44,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086810351] [2024-10-24 01:17:44,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:44,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:44,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:44,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:44,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:44,302 INFO L87 Difference]: Start difference. First operand 3617 states and 5650 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:46,980 INFO L93 Difference]: Finished difference Result 13353 states and 21088 transitions. [2024-10-24 01:17:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:17:46,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:47,027 INFO L225 Difference]: With dead ends: 13353 [2024-10-24 01:17:47,027 INFO L226 Difference]: Without dead ends: 9749 [2024-10-24 01:17:47,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:17:47,063 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 993 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:47,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1270 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 01:17:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9749 states. [2024-10-24 01:17:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9749 to 7002. [2024-10-24 01:17:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 6319 states have (on average 1.55515113150815) internal successors, (9827), 6352 states have internal predecessors, (9827), 452 states have call successors, (452), 198 states have call predecessors, (452), 230 states have return successors, (727), 483 states have call predecessors, (727), 452 states have call successors, (727) [2024-10-24 01:17:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 11006 transitions. [2024-10-24 01:17:47,715 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 11006 transitions. Word has length 114 [2024-10-24 01:17:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:47,716 INFO L471 AbstractCegarLoop]: Abstraction has 7002 states and 11006 transitions. [2024-10-24 01:17:47,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 11006 transitions. [2024-10-24 01:17:47,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:47,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:47,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:47,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:17:47,726 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:47,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:47,727 INFO L85 PathProgramCache]: Analyzing trace with hash -80690066, now seen corresponding path program 1 times [2024-10-24 01:17:47,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:47,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316773204] [2024-10-24 01:17:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:47,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:47,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:47,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316773204] [2024-10-24 01:17:47,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316773204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:47,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:47,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:47,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920064812] [2024-10-24 01:17:47,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:47,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:47,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:47,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:47,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:47,890 INFO L87 Difference]: Start difference. First operand 7002 states and 11006 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:49,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:49,367 INFO L93 Difference]: Finished difference Result 15900 states and 25296 transitions. [2024-10-24 01:17:49,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:49,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:49,422 INFO L225 Difference]: With dead ends: 15900 [2024-10-24 01:17:49,422 INFO L226 Difference]: Without dead ends: 8911 [2024-10-24 01:17:49,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:49,443 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 667 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:49,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 650 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:17:49,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8911 states. [2024-10-24 01:17:50,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8911 to 7002. [2024-10-24 01:17:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 6319 states have (on average 1.5499287862003481) internal successors, (9794), 6352 states have internal predecessors, (9794), 452 states have call successors, (452), 198 states have call predecessors, (452), 230 states have return successors, (727), 483 states have call predecessors, (727), 452 states have call successors, (727) [2024-10-24 01:17:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 10973 transitions. [2024-10-24 01:17:50,128 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 10973 transitions. Word has length 114 [2024-10-24 01:17:50,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:50,128 INFO L471 AbstractCegarLoop]: Abstraction has 7002 states and 10973 transitions. [2024-10-24 01:17:50,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:50,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 10973 transitions. [2024-10-24 01:17:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:50,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:50,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:50,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:17:50,138 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:50,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:50,139 INFO L85 PathProgramCache]: Analyzing trace with hash -666966288, now seen corresponding path program 1 times [2024-10-24 01:17:50,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:50,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904113291] [2024-10-24 01:17:50,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:50,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:50,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:50,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904113291] [2024-10-24 01:17:50,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904113291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:50,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:50,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:50,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704806210] [2024-10-24 01:17:50,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:50,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:50,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:50,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:50,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:50,300 INFO L87 Difference]: Start difference. First operand 7002 states and 10973 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:53,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:53,245 INFO L93 Difference]: Finished difference Result 25118 states and 39734 transitions. [2024-10-24 01:17:53,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:17:53,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:53,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:53,307 INFO L225 Difference]: With dead ends: 25118 [2024-10-24 01:17:53,308 INFO L226 Difference]: Without dead ends: 18129 [2024-10-24 01:17:53,332 INFO L431 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 [2024-10-24 01:17:53,333 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 967 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:53,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 1270 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 01:17:53,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18129 states. [2024-10-24 01:17:54,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18129 to 13804. [2024-10-24 01:17:54,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13804 states, 12497 states have (on average 1.5483716091862048) internal successors, (19350), 12562 states have internal predecessors, (19350), 852 states have call successors, (852), 390 states have call predecessors, (852), 454 states have return successors, (1645), 915 states have call predecessors, (1645), 852 states have call successors, (1645) [2024-10-24 01:17:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13804 states to 13804 states and 21847 transitions. [2024-10-24 01:17:54,503 INFO L78 Accepts]: Start accepts. Automaton has 13804 states and 21847 transitions. Word has length 114 [2024-10-24 01:17:54,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:54,504 INFO L471 AbstractCegarLoop]: Abstraction has 13804 states and 21847 transitions. [2024-10-24 01:17:54,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:54,505 INFO L276 IsEmpty]: Start isEmpty. Operand 13804 states and 21847 transitions. [2024-10-24 01:17:54,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:17:54,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:54,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:17:54,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:17:54,524 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:54,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1669426222, now seen corresponding path program 1 times [2024-10-24 01:17:54,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:54,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796176348] [2024-10-24 01:17:54,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:54,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:17:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:17:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:17:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:17:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:54,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:54,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796176348] [2024-10-24 01:17:54,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796176348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:54,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:54,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:54,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703553737] [2024-10-24 01:17:54,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:54,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:54,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:54,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:54,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:54,743 INFO L87 Difference]: Start difference. First operand 13804 states and 21847 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:17:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:58,967 INFO L93 Difference]: Finished difference Result 48622 states and 77694 transitions. [2024-10-24 01:17:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:17:58,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:17:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:59,135 INFO L225 Difference]: With dead ends: 48622 [2024-10-24 01:17:59,135 INFO L226 Difference]: Without dead ends: 34831 [2024-10-24 01:17:59,189 INFO L431 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 [2024-10-24 01:17:59,190 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 966 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 2508 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:59,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1270 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2508 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 01:17:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34831 states. [2024-10-24 01:18:01,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34831 to 27405. [2024-10-24 01:18:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27405 states, 24882 states have (on average 1.5481070653484446) internal successors, (38520), 25011 states have internal predecessors, (38520), 1620 states have call successors, (1620), 774 states have call predecessors, (1620), 902 states have return successors, (3935), 1747 states have call predecessors, (3935), 1620 states have call successors, (3935) [2024-10-24 01:18:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27405 states to 27405 states and 44075 transitions. [2024-10-24 01:18:01,190 INFO L78 Accepts]: Start accepts. Automaton has 27405 states and 44075 transitions. Word has length 114 [2024-10-24 01:18:01,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:01,192 INFO L471 AbstractCegarLoop]: Abstraction has 27405 states and 44075 transitions. [2024-10-24 01:18:01,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:18:01,192 INFO L276 IsEmpty]: Start isEmpty. Operand 27405 states and 44075 transitions. [2024-10-24 01:18:01,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:18:01,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:01,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:01,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:18:01,228 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:01,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:01,229 INFO L85 PathProgramCache]: Analyzing trace with hash -749058256, now seen corresponding path program 1 times [2024-10-24 01:18:01,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:01,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997207612] [2024-10-24 01:18:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:01,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:18:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:18:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:18:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:18:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:01,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:01,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997207612] [2024-10-24 01:18:01,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997207612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:01,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:01,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:18:01,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649773648] [2024-10-24 01:18:01,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:01,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:18:01,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:01,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:18:01,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:18:01,373 INFO L87 Difference]: Start difference. First operand 27405 states and 44075 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-24 01:18:04,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:04,724 INFO L93 Difference]: Finished difference Result 60443 states and 97699 transitions. [2024-10-24 01:18:04,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:04,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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 114 [2024-10-24 01:18:04,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:04,894 INFO L225 Difference]: With dead ends: 60443 [2024-10-24 01:18:04,894 INFO L226 Difference]: Without dead ends: 33052 [2024-10-24 01:18:04,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:18:04,987 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 299 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:04,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 726 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:18:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33052 states. [2024-10-24 01:18:06,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33052 to 27407. [2024-10-24 01:18:07,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27407 states, 24884 states have (on average 1.5429191448320205) internal successors, (38394), 25013 states have internal predecessors, (38394), 1620 states have call successors, (1620), 774 states have call predecessors, (1620), 902 states have return successors, (3935), 1747 states have call predecessors, (3935), 1620 states have call successors, (3935) [2024-10-24 01:18:07,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27407 states to 27407 states and 43949 transitions. [2024-10-24 01:18:07,100 INFO L78 Accepts]: Start accepts. Automaton has 27407 states and 43949 transitions. Word has length 114 [2024-10-24 01:18:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:07,101 INFO L471 AbstractCegarLoop]: Abstraction has 27407 states and 43949 transitions. [2024-10-24 01:18:07,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-24 01:18:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 27407 states and 43949 transitions. [2024-10-24 01:18:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:18:07,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:07,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:07,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:18:07,140 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:07,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:07,140 INFO L85 PathProgramCache]: Analyzing trace with hash -721992654, now seen corresponding path program 1 times [2024-10-24 01:18:07,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:07,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482773282] [2024-10-24 01:18:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:07,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:07,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:07,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:18:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:07,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:18:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:07,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:18:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:07,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:18:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:07,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482773282] [2024-10-24 01:18:07,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482773282] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:07,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:07,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:18:07,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931338594] [2024-10-24 01:18:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:07,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:18:07,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:18:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:18:07,279 INFO L87 Difference]: Start difference. First operand 27407 states and 43949 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-24 01:18:10,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:10,823 INFO L93 Difference]: Finished difference Result 60705 states and 97834 transitions. [2024-10-24 01:18:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:18:10,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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 114 [2024-10-24 01:18:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:10,946 INFO L225 Difference]: With dead ends: 60705 [2024-10-24 01:18:10,946 INFO L226 Difference]: Without dead ends: 33312 [2024-10-24 01:18:11,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:11,003 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 310 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:11,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 726 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 01:18:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33312 states. [2024-10-24 01:18:12,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33312 to 27665. [2024-10-24 01:18:12,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27665 states, 25142 states have (on average 1.5373478641317317) internal successors, (38652), 25271 states have internal predecessors, (38652), 1620 states have call successors, (1620), 774 states have call predecessors, (1620), 902 states have return successors, (3935), 1747 states have call predecessors, (3935), 1620 states have call successors, (3935) [2024-10-24 01:18:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27665 states to 27665 states and 44207 transitions. [2024-10-24 01:18:12,840 INFO L78 Accepts]: Start accepts. Automaton has 27665 states and 44207 transitions. Word has length 114 [2024-10-24 01:18:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:12,840 INFO L471 AbstractCegarLoop]: Abstraction has 27665 states and 44207 transitions. [2024-10-24 01:18:12,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-24 01:18:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 27665 states and 44207 transitions. [2024-10-24 01:18:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:18:12,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:12,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:18:12,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:18:12,870 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:12,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:12,870 INFO L85 PathProgramCache]: Analyzing trace with hash -645091856, now seen corresponding path program 1 times [2024-10-24 01:18:12,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:12,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816639577] [2024-10-24 01:18:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:12,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:12,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 01:18:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:12,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 01:18:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:13,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 01:18:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:13,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 01:18:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:13,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:13,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816639577] [2024-10-24 01:18:13,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816639577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:13,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:13,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580748959] [2024-10-24 01:18:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:13,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:13,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:13,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:13,053 INFO L87 Difference]: Start difference. First operand 27665 states and 44207 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 01:18:23,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:23,548 INFO L93 Difference]: Finished difference Result 155764 states and 253817 transitions. [2024-10-24 01:18:23,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:18:23,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 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 114 [2024-10-24 01:18:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:24,207 INFO L225 Difference]: With dead ends: 155764 [2024-10-24 01:18:24,208 INFO L226 Difference]: Without dead ends: 128113 [2024-10-24 01:18:24,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:24,303 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 2370 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 2222 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 2459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 2222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:24,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 1198 Invalid, 2459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 2222 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 01:18:24,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128113 states.