./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.11.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.11.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 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:17:46,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:17:46,614 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:17:46,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:17:46,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:17:46,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:17:46,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:17:46,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:17:46,647 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:17:46,649 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:17:46,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:17:46,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:17:46,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:17:46,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:17:46,652 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:17:46,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:17:46,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:17:46,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:17:46,653 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:17:46,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:17:46,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:17:46,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:17:46,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:17:46,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:17:46,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:17:46,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:17:46,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:17:46,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:17:46,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:17:46,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:17:46,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:17:46,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:17:46,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:46,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:17:46,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:17:46,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:17:46,658 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:17:46,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:17:46,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:17:46,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:17:46,659 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:17:46,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:17:46,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 [2024-10-24 01:17:46,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:17:46,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:17:46,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:17:46,888 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:17:46,888 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:17:46,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-10-24 01:17:48,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:17:48,596 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:17:48,597 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-10-24 01:17:48,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/508e19cc4/ed06550808a1428382d57f7010739334/FLAG2042d1b37 [2024-10-24 01:17:48,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/508e19cc4/ed06550808a1428382d57f7010739334 [2024-10-24 01:17:48,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:17:48,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:17:48,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:48,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:17:48,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:17:48,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:48" (1/1) ... [2024-10-24 01:17:48,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1989c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:48, skipping insertion in model container [2024-10-24 01:17:48,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:48" (1/1) ... [2024-10-24 01:17:48,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:17:48,937 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.11.cil.c[706,719] [2024-10-24 01:17:49,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:49,032 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:17:49,041 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.11.cil.c[706,719] [2024-10-24 01:17:49,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:49,226 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:17:49,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49 WrapperNode [2024-10-24 01:17:49,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:49,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:49,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:17:49,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:17:49,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,320 INFO L138 Inliner]: procedures = 50, calls = 63, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 800 [2024-10-24 01:17:49,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:49,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:17:49,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:17:49,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:17:49,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,387 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 01:17:49,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:17:49,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:17:49,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:17:49,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:17:49,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (1/1) ... [2024-10-24 01:17:49,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:49,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:17:49,490 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 01:17:49,501 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 01:17:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:17:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 01:17:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 01:17:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 01:17:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 01:17:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 01:17:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 01:17:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 01:17:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 01:17:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 01:17:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 01:17:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 01:17:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 01:17:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:17:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:17:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:17:49,649 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:17:49,651 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:17:50,310 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-10-24 01:17:50,310 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:17:50,349 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:17:50,349 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-24 01:17:50,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:50 BoogieIcfgContainer [2024-10-24 01:17:50,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:17:50,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:17:50,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:17:50,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:17:50,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:17:48" (1/3) ... [2024-10-24 01:17:50,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18460d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:50, skipping insertion in model container [2024-10-24 01:17:50,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:49" (2/3) ... [2024-10-24 01:17:50,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18460d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:50, skipping insertion in model container [2024-10-24 01:17:50,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:50" (3/3) ... [2024-10-24 01:17:50,356 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2024-10-24 01:17:50,367 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:17:50,367 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:17:50,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:17:50,430 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;@18811c68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:17:50,430 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:17:50,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 288 states have (on average 1.7361111111111112) internal successors, (500), 290 states have internal predecessors, (500), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 01:17:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:17:50,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:50,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:50,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:50,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:50,461 INFO L85 PathProgramCache]: Analyzing trace with hash -342489240, now seen corresponding path program 1 times [2024-10-24 01:17:50,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:50,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258274306] [2024-10-24 01:17:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:50,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:17:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:50,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:17:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:51,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:17:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:51,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:17:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:51,046 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 01:17:51,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:51,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258274306] [2024-10-24 01:17:51,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258274306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:51,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:51,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:17:51,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603768280] [2024-10-24 01:17:51,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:51,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:17:51,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:51,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:17:51,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:17:51,083 INFO L87 Difference]: Start difference. First operand has 320 states, 288 states have (on average 1.7361111111111112) internal successors, (500), 290 states have internal predecessors, (500), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 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 01:17:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:52,570 INFO L93 Difference]: Finished difference Result 750 states and 1292 transitions. [2024-10-24 01:17:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:17:52,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 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 158 [2024-10-24 01:17:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:52,583 INFO L225 Difference]: With dead ends: 750 [2024-10-24 01:17:52,583 INFO L226 Difference]: Without dead ends: 436 [2024-10-24 01:17:52,586 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 01:17:52,588 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 889 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:52,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 570 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 01:17:52,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-24 01:17:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 318. [2024-10-24 01:17:52,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 287 states have (on average 1.6236933797909407) internal successors, (466), 288 states have internal predecessors, (466), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 01:17:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 514 transitions. [2024-10-24 01:17:52,640 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 514 transitions. Word has length 158 [2024-10-24 01:17:52,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:52,640 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 514 transitions. [2024-10-24 01:17:52,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 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 01:17:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 514 transitions. [2024-10-24 01:17:52,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:17:52,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:52,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:52,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:17:52,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:52,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:52,644 INFO L85 PathProgramCache]: Analyzing trace with hash -728351642, now seen corresponding path program 1 times [2024-10-24 01:17:52,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:52,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250617968] [2024-10-24 01:17:52,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:52,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:17:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:17:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:17:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:17:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,874 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 01:17:52,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:52,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250617968] [2024-10-24 01:17:52,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250617968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:52,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:52,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:17:52,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075511858] [2024-10-24 01:17:52,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:52,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:17:52,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:52,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:17:52,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:17:52,877 INFO L87 Difference]: Start difference. First operand 318 states and 514 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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 01:17:55,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:55,181 INFO L93 Difference]: Finished difference Result 1172 states and 1948 transitions. [2024-10-24 01:17:55,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:17:55,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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 158 [2024-10-24 01:17:55,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:55,190 INFO L225 Difference]: With dead ends: 1172 [2024-10-24 01:17:55,190 INFO L226 Difference]: Without dead ends: 871 [2024-10-24 01:17:55,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:55,196 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 1341 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:55,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 958 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 01:17:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-10-24 01:17:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 636. [2024-10-24 01:17:55,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 579 states have (on average 1.6303972366148531) internal successors, (944), 581 states have internal predecessors, (944), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-10-24 01:17:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1033 transitions. [2024-10-24 01:17:55,261 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1033 transitions. Word has length 158 [2024-10-24 01:17:55,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:55,262 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 1033 transitions. [2024-10-24 01:17:55,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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 01:17:55,263 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1033 transitions. [2024-10-24 01:17:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:17:55,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:55,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:55,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:17:55,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:55,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1994676027, now seen corresponding path program 1 times [2024-10-24 01:17:55,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:55,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190501750] [2024-10-24 01:17:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:55,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:17:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:17:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:17:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:17:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,614 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 01:17:55,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:55,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190501750] [2024-10-24 01:17:55,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190501750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:55,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:55,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:55,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877884579] [2024-10-24 01:17:55,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:55,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:55,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:55,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:55,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:55,617 INFO L87 Difference]: Start difference. First operand 636 states and 1033 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:17:59,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:59,405 INFO L93 Difference]: Finished difference Result 2084 states and 3435 transitions. [2024-10-24 01:17:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:59,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:17:59,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:59,412 INFO L225 Difference]: With dead ends: 2084 [2024-10-24 01:17:59,412 INFO L226 Difference]: Without dead ends: 1465 [2024-10-24 01:17:59,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:59,414 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1472 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4233 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 4292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 4233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:59,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1841 Invalid, 4292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 4233 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 01:17:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2024-10-24 01:17:59,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 930. [2024-10-24 01:17:59,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 847 states have (on average 1.6221959858323494) internal successors, (1374), 850 states have internal predecessors, (1374), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2024-10-24 01:17:59,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1503 transitions. [2024-10-24 01:17:59,463 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1503 transitions. Word has length 158 [2024-10-24 01:17:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:59,463 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1503 transitions. [2024-10-24 01:17:59,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:17:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1503 transitions. [2024-10-24 01:17:59,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:17:59,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:59,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:59,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:17:59,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:59,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash 164408067, now seen corresponding path program 1 times [2024-10-24 01:17:59,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:59,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945431221] [2024-10-24 01:17:59,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:59,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:17:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:17:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:17:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:17:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,705 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 01:17:59,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:59,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945431221] [2024-10-24 01:17:59,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945431221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:59,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:59,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:59,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957433488] [2024-10-24 01:17:59,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:59,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:59,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:59,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:59,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:59,708 INFO L87 Difference]: Start difference. First operand 930 states and 1503 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:03,259 INFO L93 Difference]: Finished difference Result 3214 states and 5285 transitions. [2024-10-24 01:18:03,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:18:03,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:03,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:03,271 INFO L225 Difference]: With dead ends: 3214 [2024-10-24 01:18:03,271 INFO L226 Difference]: Without dead ends: 2301 [2024-10-24 01:18:03,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:18:03,276 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1470 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4229 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:03,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1839 Invalid, 4290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4229 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 01:18:03,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2024-10-24 01:18:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 1519. [2024-10-24 01:18:03,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.614884393063584) internal successors, (2235), 1389 states have internal predecessors, (2235), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-24 01:18:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2448 transitions. [2024-10-24 01:18:03,356 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2448 transitions. Word has length 158 [2024-10-24 01:18:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:03,356 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2448 transitions. [2024-10-24 01:18:03,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2448 transitions. [2024-10-24 01:18:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:03,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:03,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:03,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:18:03,359 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:03,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:03,359 INFO L85 PathProgramCache]: Analyzing trace with hash 234055941, now seen corresponding path program 1 times [2024-10-24 01:18:03,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:03,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604331791] [2024-10-24 01:18:03,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:03,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:03,604 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 01:18:03,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604331791] [2024-10-24 01:18:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604331791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:03,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:03,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:03,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880688720] [2024-10-24 01:18:03,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:03,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:03,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:03,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:03,607 INFO L87 Difference]: Start difference. First operand 1519 states and 2448 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:04,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:04,944 INFO L93 Difference]: Finished difference Result 3651 states and 5990 transitions. [2024-10-24 01:18:04,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:04,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:04,953 INFO L225 Difference]: With dead ends: 3651 [2024-10-24 01:18:04,953 INFO L226 Difference]: Without dead ends: 2149 [2024-10-24 01:18:04,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:04,957 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1122 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:04,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 785 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:18:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2024-10-24 01:18:05,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1519. [2024-10-24 01:18:05,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.611271676300578) internal successors, (2230), 1389 states have internal predecessors, (2230), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-24 01:18:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2443 transitions. [2024-10-24 01:18:05,029 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2443 transitions. Word has length 158 [2024-10-24 01:18:05,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:05,029 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2443 transitions. [2024-10-24 01:18:05,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2443 transitions. [2024-10-24 01:18:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:05,032 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:05,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:05,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:18:05,033 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:05,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash 651944643, now seen corresponding path program 1 times [2024-10-24 01:18:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995309943] [2024-10-24 01:18:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:05,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:05,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:05,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:05,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:05,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:05,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:05,273 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 01:18:05,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:05,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995309943] [2024-10-24 01:18:05,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995309943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:05,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:05,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:05,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118342357] [2024-10-24 01:18:05,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:05,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:05,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:05,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:05,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:05,277 INFO L87 Difference]: Start difference. First operand 1519 states and 2443 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:06,663 INFO L93 Difference]: Finished difference Result 3645 states and 5964 transitions. [2024-10-24 01:18:06,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:06,673 INFO L225 Difference]: With dead ends: 3645 [2024-10-24 01:18:06,674 INFO L226 Difference]: Without dead ends: 2143 [2024-10-24 01:18:06,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:06,678 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1120 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:06,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 785 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:18:06,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2024-10-24 01:18:06,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1519. [2024-10-24 01:18:06,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6076589595375723) internal successors, (2225), 1389 states have internal predecessors, (2225), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-24 01:18:06,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2438 transitions. [2024-10-24 01:18:06,767 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2438 transitions. Word has length 158 [2024-10-24 01:18:06,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:06,767 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2438 transitions. [2024-10-24 01:18:06,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:06,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2438 transitions. [2024-10-24 01:18:06,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:06,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:06,769 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:06,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:18:06,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:06,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:06,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2050898245, now seen corresponding path program 1 times [2024-10-24 01:18:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:06,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272153218] [2024-10-24 01:18:06,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:06,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,961 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 01:18:06,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:06,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272153218] [2024-10-24 01:18:06,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272153218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:06,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:06,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:06,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014683331] [2024-10-24 01:18:06,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:06,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:06,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:06,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:06,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:06,962 INFO L87 Difference]: Start difference. First operand 1519 states and 2438 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:08,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:08,355 INFO L93 Difference]: Finished difference Result 3638 states and 5936 transitions. [2024-10-24 01:18:08,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:08,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:08,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:08,363 INFO L225 Difference]: With dead ends: 3638 [2024-10-24 01:18:08,363 INFO L226 Difference]: Without dead ends: 2136 [2024-10-24 01:18:08,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:08,367 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1124 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:08,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 785 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:18:08,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2024-10-24 01:18:08,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1519. [2024-10-24 01:18:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6040462427745665) internal successors, (2220), 1389 states have internal predecessors, (2220), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-24 01:18:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2433 transitions. [2024-10-24 01:18:08,438 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2433 transitions. Word has length 158 [2024-10-24 01:18:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:08,438 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2433 transitions. [2024-10-24 01:18:08,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2433 transitions. [2024-10-24 01:18:08,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:08,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:08,441 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:08,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:18:08,441 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:08,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:08,442 INFO L85 PathProgramCache]: Analyzing trace with hash 433457795, now seen corresponding path program 1 times [2024-10-24 01:18:08,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941980639] [2024-10-24 01:18:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:08,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:08,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:08,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:08,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:08,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:08,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:08,616 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 01:18:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:08,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941980639] [2024-10-24 01:18:08,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941980639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:08,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:08,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:08,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665379999] [2024-10-24 01:18:08,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:08,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:08,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:08,619 INFO L87 Difference]: Start difference. First operand 1519 states and 2433 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:10,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:10,161 INFO L93 Difference]: Finished difference Result 3626 states and 5898 transitions. [2024-10-24 01:18:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:10,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:10,172 INFO L225 Difference]: With dead ends: 3626 [2024-10-24 01:18:10,172 INFO L226 Difference]: Without dead ends: 2124 [2024-10-24 01:18:10,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:10,176 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1041 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:10,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 934 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 01:18:10,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2024-10-24 01:18:10,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1519. [2024-10-24 01:18:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6004335260115607) internal successors, (2215), 1389 states have internal predecessors, (2215), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-24 01:18:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2428 transitions. [2024-10-24 01:18:10,270 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2428 transitions. Word has length 158 [2024-10-24 01:18:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:10,270 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2428 transitions. [2024-10-24 01:18:10,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2428 transitions. [2024-10-24 01:18:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:10,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:10,272 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:10,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:18:10,273 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:10,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash 722277185, now seen corresponding path program 1 times [2024-10-24 01:18:10,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:10,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591810690] [2024-10-24 01:18:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:10,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,482 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 01:18:10,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:10,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591810690] [2024-10-24 01:18:10,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591810690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:10,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:10,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:10,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180873460] [2024-10-24 01:18:10,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:10,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:10,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:10,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:10,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:10,485 INFO L87 Difference]: Start difference. First operand 1519 states and 2428 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:13,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:13,845 INFO L93 Difference]: Finished difference Result 5348 states and 8660 transitions. [2024-10-24 01:18:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:18:13,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:13,858 INFO L225 Difference]: With dead ends: 5348 [2024-10-24 01:18:13,858 INFO L226 Difference]: Without dead ends: 3846 [2024-10-24 01:18:13,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:18:13,863 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1441 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4099 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:13,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 1839 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4099 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 01:18:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2024-10-24 01:18:14,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 2720. [2024-10-24 01:18:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2481 states have (on average 1.5929060862555422) internal successors, (3952), 2490 states have internal predecessors, (3952), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2024-10-24 01:18:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 4339 transitions. [2024-10-24 01:18:14,099 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 4339 transitions. Word has length 158 [2024-10-24 01:18:14,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:14,100 INFO L471 AbstractCegarLoop]: Abstraction has 2720 states and 4339 transitions. [2024-10-24 01:18:14,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:14,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 4339 transitions. [2024-10-24 01:18:14,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:14,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:14,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:14,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:18:14,103 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:14,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:14,104 INFO L85 PathProgramCache]: Analyzing trace with hash 177404611, now seen corresponding path program 1 times [2024-10-24 01:18:14,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:14,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124558700] [2024-10-24 01:18:14,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:14,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:14,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:14,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:14,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:14,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:14,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:14,286 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 01:18:14,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:14,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124558700] [2024-10-24 01:18:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124558700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:14,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:14,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:14,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393427984] [2024-10-24 01:18:14,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:14,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:14,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:14,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:14,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:14,288 INFO L87 Difference]: Start difference. First operand 2720 states and 4339 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:17,849 INFO L93 Difference]: Finished difference Result 9681 states and 15647 transitions. [2024-10-24 01:18:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:18:17,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:17,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:17,895 INFO L225 Difference]: With dead ends: 9681 [2024-10-24 01:18:17,895 INFO L226 Difference]: Without dead ends: 6978 [2024-10-24 01:18:17,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:18:17,908 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1440 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:17,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 1839 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 01:18:17,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2024-10-24 01:18:18,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 5119. [2024-10-24 01:18:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 4672 states have (on average 1.5873287671232876) internal successors, (7416), 4689 states have internal predecessors, (7416), 328 states have call successors, (328), 102 states have call predecessors, (328), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2024-10-24 01:18:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 8169 transitions. [2024-10-24 01:18:18,168 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 8169 transitions. Word has length 158 [2024-10-24 01:18:18,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:18,168 INFO L471 AbstractCegarLoop]: Abstraction has 5119 states and 8169 transitions. [2024-10-24 01:18:18,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 8169 transitions. [2024-10-24 01:18:18,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:18,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:18,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:18,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:18:18,173 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:18,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:18,174 INFO L85 PathProgramCache]: Analyzing trace with hash 852564737, now seen corresponding path program 1 times [2024-10-24 01:18:18,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:18,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977630282] [2024-10-24 01:18:18,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:18,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:18,390 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 01:18:18,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:18,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977630282] [2024-10-24 01:18:18,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977630282] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:18,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:18,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840096304] [2024-10-24 01:18:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:18,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:18,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:18,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:18,393 INFO L87 Difference]: Start difference. First operand 5119 states and 8169 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:22,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:22,071 INFO L93 Difference]: Finished difference Result 18338 states and 29663 transitions. [2024-10-24 01:18:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:18:22,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:22,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:22,119 INFO L225 Difference]: With dead ends: 18338 [2024-10-24 01:18:22,119 INFO L226 Difference]: Without dead ends: 13236 [2024-10-24 01:18:22,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:18:22,131 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1439 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4073 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:22,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1839 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4073 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 01:18:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13236 states. [2024-10-24 01:18:22,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13236 to 9932. [2024-10-24 01:18:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 9069 states have (on average 1.5840776270812658) internal successors, (14366), 9102 states have internal predecessors, (14366), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-10-24 01:18:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 15905 transitions. [2024-10-24 01:18:22,693 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 15905 transitions. Word has length 158 [2024-10-24 01:18:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:22,694 INFO L471 AbstractCegarLoop]: Abstraction has 9932 states and 15905 transitions. [2024-10-24 01:18:22,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 15905 transitions. [2024-10-24 01:18:22,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:22,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:22,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:22,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:18:22,708 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:22,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:22,708 INFO L85 PathProgramCache]: Analyzing trace with hash -95487229, now seen corresponding path program 1 times [2024-10-24 01:18:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:22,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792157659] [2024-10-24 01:18:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:22,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:22,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:22,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:22,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:22,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:22,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:22,891 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 01:18:22,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:22,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792157659] [2024-10-24 01:18:22,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792157659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:22,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:22,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:22,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37080129] [2024-10-24 01:18:22,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:22,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:22,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:22,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:22,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:22,893 INFO L87 Difference]: Start difference. First operand 9932 states and 15905 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:24,789 INFO L93 Difference]: Finished difference Result 23160 states and 37675 transitions. [2024-10-24 01:18:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:24,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:24,882 INFO L225 Difference]: With dead ends: 23160 [2024-10-24 01:18:24,882 INFO L226 Difference]: Without dead ends: 13245 [2024-10-24 01:18:24,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:24,925 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1121 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:24,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 785 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 01:18:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13245 states. [2024-10-24 01:18:25,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13245 to 9932. [2024-10-24 01:18:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 9069 states have (on average 1.580438857646929) internal successors, (14333), 9102 states have internal predecessors, (14333), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-10-24 01:18:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 15872 transitions. [2024-10-24 01:18:25,476 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 15872 transitions. Word has length 158 [2024-10-24 01:18:25,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:25,478 INFO L471 AbstractCegarLoop]: Abstraction has 9932 states and 15872 transitions. [2024-10-24 01:18:25,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:25,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 15872 transitions. [2024-10-24 01:18:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:25,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:25,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:25,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:18:25,490 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:25,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:25,490 INFO L85 PathProgramCache]: Analyzing trace with hash -680258879, now seen corresponding path program 1 times [2024-10-24 01:18:25,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:25,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934869543] [2024-10-24 01:18:25,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:25,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:25,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:25,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:25,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:25,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:25,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:25,745 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 01:18:25,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:25,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934869543] [2024-10-24 01:18:25,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934869543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:25,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:25,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:25,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177004277] [2024-10-24 01:18:25,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:25,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:25,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:25,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:25,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:25,747 INFO L87 Difference]: Start difference. First operand 9932 states and 15872 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:30,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:30,634 INFO L93 Difference]: Finished difference Result 39779 states and 64379 transitions. [2024-10-24 01:18:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:18:30,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:30,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:30,735 INFO L225 Difference]: With dead ends: 39779 [2024-10-24 01:18:30,736 INFO L226 Difference]: Without dead ends: 29864 [2024-10-24 01:18:30,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:30,762 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 1523 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:30,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 1810 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 01:18:30,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29864 states. [2024-10-24 01:18:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29864 to 19526. [2024-10-24 01:18:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19526 states, 17863 states have (on average 1.5796338800873313) internal successors, (28217), 17928 states have internal predecessors, (28217), 1208 states have call successors, (1208), 390 states have call predecessors, (1208), 454 states have return successors, (2001), 1271 states have call predecessors, (2001), 1208 states have call successors, (2001) [2024-10-24 01:18:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 31426 transitions. [2024-10-24 01:18:32,007 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 31426 transitions. Word has length 158 [2024-10-24 01:18:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:32,007 INFO L471 AbstractCegarLoop]: Abstraction has 19526 states and 31426 transitions. [2024-10-24 01:18:32,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 31426 transitions. [2024-10-24 01:18:32,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:32,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:32,028 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:32,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:18:32,029 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:32,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:32,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1114764477, now seen corresponding path program 1 times [2024-10-24 01:18:32,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:32,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608843975] [2024-10-24 01:18:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:32,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:32,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:32,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:32,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:32,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:32,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:32,191 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 01:18:32,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608843975] [2024-10-24 01:18:32,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608843975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:32,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:32,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559432207] [2024-10-24 01:18:32,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:32,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:32,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:32,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:32,193 INFO L87 Difference]: Start difference. First operand 19526 states and 31426 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:35,352 INFO L93 Difference]: Finished difference Result 45256 states and 74026 transitions. [2024-10-24 01:18:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:35,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:35,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:35,439 INFO L225 Difference]: With dead ends: 45256 [2024-10-24 01:18:35,439 INFO L226 Difference]: Without dead ends: 25747 [2024-10-24 01:18:35,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:35,478 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 982 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:35,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 934 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 01:18:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25747 states. [2024-10-24 01:18:36,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25747 to 19526. [2024-10-24 01:18:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19526 states, 17863 states have (on average 1.575995073615854) internal successors, (28152), 17928 states have internal predecessors, (28152), 1208 states have call successors, (1208), 390 states have call predecessors, (1208), 454 states have return successors, (2001), 1271 states have call predecessors, (2001), 1208 states have call successors, (2001) [2024-10-24 01:18:36,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 31361 transitions. [2024-10-24 01:18:36,850 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 31361 transitions. Word has length 158 [2024-10-24 01:18:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:36,850 INFO L471 AbstractCegarLoop]: Abstraction has 19526 states and 31361 transitions. [2024-10-24 01:18:36,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 31361 transitions. [2024-10-24 01:18:36,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:36,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:36,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:36,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:18:36,875 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:36,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:36,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1544422783, now seen corresponding path program 1 times [2024-10-24 01:18:36,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:36,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079676501] [2024-10-24 01:18:36,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:36,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:36,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:36,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:37,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:37,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:37,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:37,070 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 01:18:37,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079676501] [2024-10-24 01:18:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079676501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:37,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:37,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:37,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596795905] [2024-10-24 01:18:37,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:37,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:37,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:37,072 INFO L87 Difference]: Start difference. First operand 19526 states and 31361 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:43,761 INFO L93 Difference]: Finished difference Result 75847 states and 123407 transitions. [2024-10-24 01:18:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:18:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:44,055 INFO L225 Difference]: With dead ends: 75847 [2024-10-24 01:18:44,055 INFO L226 Difference]: Without dead ends: 56338 [2024-10-24 01:18:44,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:44,097 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 1570 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 3614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:44,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 1188 Invalid, 3614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-24 01:18:44,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56338 states. [2024-10-24 01:18:46,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56338 to 38873. [2024-10-24 01:18:46,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38873 states, 35642 states have (on average 1.57516413220358) internal successors, (56142), 35771 states have internal predecessors, (56142), 2328 states have call successors, (2328), 774 states have call predecessors, (2328), 902 states have return successors, (4643), 2455 states have call predecessors, (4643), 2328 states have call successors, (4643) [2024-10-24 01:18:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38873 states to 38873 states and 63113 transitions. [2024-10-24 01:18:46,950 INFO L78 Accepts]: Start accepts. Automaton has 38873 states and 63113 transitions. Word has length 158 [2024-10-24 01:18:46,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:46,950 INFO L471 AbstractCegarLoop]: Abstraction has 38873 states and 63113 transitions. [2024-10-24 01:18:46,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:46,951 INFO L276 IsEmpty]: Start isEmpty. Operand 38873 states and 63113 transitions. [2024-10-24 01:18:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:47,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:47,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:47,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:18:47,007 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:47,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash -597384897, now seen corresponding path program 1 times [2024-10-24 01:18:47,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:47,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434475171] [2024-10-24 01:18:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:47,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:47,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:47,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:47,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:47,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:47,159 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 01:18:47,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434475171] [2024-10-24 01:18:47,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434475171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:47,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:47,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:47,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300229596] [2024-10-24 01:18:47,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:47,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:47,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:47,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:47,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:47,163 INFO L87 Difference]: Start difference. First operand 38873 states and 63113 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:51,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:51,676 INFO L93 Difference]: Finished difference Result 89320 states and 147581 transitions. [2024-10-24 01:18:51,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:51,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:18:51,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:51,829 INFO L225 Difference]: With dead ends: 89320 [2024-10-24 01:18:51,829 INFO L226 Difference]: Without dead ends: 50464 [2024-10-24 01:18:51,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:51,893 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 980 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:51,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 934 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 01:18:51,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50464 states. [2024-10-24 01:18:54,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50464 to 38873. [2024-10-24 01:18:54,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38873 states, 35642 states have (on average 1.571544806688738) internal successors, (56013), 35771 states have internal predecessors, (56013), 2328 states have call successors, (2328), 774 states have call predecessors, (2328), 902 states have return successors, (4643), 2455 states have call predecessors, (4643), 2328 states have call successors, (4643) [2024-10-24 01:18:54,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38873 states to 38873 states and 62984 transitions. [2024-10-24 01:18:54,526 INFO L78 Accepts]: Start accepts. Automaton has 38873 states and 62984 transitions. Word has length 158 [2024-10-24 01:18:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:54,527 INFO L471 AbstractCegarLoop]: Abstraction has 38873 states and 62984 transitions. [2024-10-24 01:18:54,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:18:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 38873 states and 62984 transitions. [2024-10-24 01:18:54,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:18:54,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:54,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:54,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:18:54,574 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:54,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:54,574 INFO L85 PathProgramCache]: Analyzing trace with hash 264448705, now seen corresponding path program 1 times [2024-10-24 01:18:54,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:54,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113606095] [2024-10-24 01:18:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:54,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:54,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:54,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:18:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:54,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:18:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:55,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:18:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:55,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:18:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:55,032 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 01:18:55,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:55,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113606095] [2024-10-24 01:18:55,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113606095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:55,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:55,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:55,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025526595] [2024-10-24 01:18:55,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:55,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:55,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:55,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:55,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:55,034 INFO L87 Difference]: Start difference. First operand 38873 states and 62984 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:19:04,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:19:04,839 INFO L93 Difference]: Finished difference Result 147254 states and 241729 transitions. [2024-10-24 01:19:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:19:04,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 158 [2024-10-24 01:19:04,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:19:05,161 INFO L225 Difference]: With dead ends: 147254 [2024-10-24 01:19:05,161 INFO L226 Difference]: Without dead ends: 108398 [2024-10-24 01:19:05,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:19:05,251 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 1464 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:19:05,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1810 Invalid, 4025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3962 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 01:19:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108398 states. [2024-10-24 01:19:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108398 to 77691. [2024-10-24 01:19:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77691 states, 71388 states have (on average 1.5704740292486132) internal successors, (112113), 71645 states have internal predecessors, (112113), 4504 states have call successors, (4504), 1542 states have call predecessors, (4504), 1798 states have return successors, (11321), 4759 states have call predecessors, (11321), 4504 states have call successors, (11321) [2024-10-24 01:19:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77691 states to 77691 states and 127938 transitions. [2024-10-24 01:19:10,536 INFO L78 Accepts]: Start accepts. Automaton has 77691 states and 127938 transitions. Word has length 158 [2024-10-24 01:19:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:19:10,537 INFO L471 AbstractCegarLoop]: Abstraction has 77691 states and 127938 transitions. [2024-10-24 01:19:10,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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 01:19:10,537 INFO L276 IsEmpty]: Start isEmpty. Operand 77691 states and 127938 transitions. [2024-10-24 01:19:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:19:10,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:19:10,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:10,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:19:10,615 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:19:10,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:19:10,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1785960193, now seen corresponding path program 1 times [2024-10-24 01:19:10,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:19:10,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642127921] [2024-10-24 01:19:10,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:19:10,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:19:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:19:10,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:19:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:19:10,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 01:19:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:19:10,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:19:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:19:10,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 01:19:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:19:10,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 01:19:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:19:10,857 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 01:19:10,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:19:10,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642127921] [2024-10-24 01:19:10,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642127921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:19:10,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:19:10,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:19:10,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664700327] [2024-10-24 01:19:10,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:19:10,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:19:10,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:19:10,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:19:10,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:19:10,859 INFO L87 Difference]: Start difference. First operand 77691 states and 127938 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 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)