./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:21:26,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:21:26,071 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:21:26,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:21:26,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:21:26,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:21:26,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:21:26,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:21:26,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:21:26,099 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:21:26,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:21:26,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:21:26,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:21:26,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:21:26,100 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:21:26,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:21:26,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:21:26,101 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:21:26,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:21:26,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:21:26,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:21:26,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:21:26,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:21:26,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:21:26,103 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:21:26,103 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:21:26,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:21:26,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:21:26,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:21:26,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:21:26,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:21:26,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:21:26,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:21:26,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:21:26,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:21:26,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:21:26,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:21:26,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:21:26,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:21:26,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:21:26,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:21:26,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:21:26,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 [2024-11-22 02:21:26,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:21:26,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:21:26,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:21:26,365 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:21:26,366 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:21:26,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-11-22 02:21:27,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:21:28,046 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:21:28,047 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-11-22 02:21:28,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627822f0a/43f7006552e04b4588a522cd1c609db1/FLAGfe74ea341 [2024-11-22 02:21:28,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627822f0a/43f7006552e04b4588a522cd1c609db1 [2024-11-22 02:21:28,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:21:28,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:21:28,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:21:28,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:21:28,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:21:28,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6a6abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28, skipping insertion in model container [2024-11-22 02:21:28,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:21:28,352 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c[706,719] [2024-11-22 02:21:28,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:21:28,486 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:21:28,500 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c[706,719] [2024-11-22 02:21:28,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:21:28,638 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:21:28,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28 WrapperNode [2024-11-22 02:21:28,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:21:28,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:21:28,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:21:28,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:21:28,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,734 INFO L138 Inliner]: procedures = 50, calls = 63, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 800 [2024-11-22 02:21:28,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:21:28,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:21:28,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:21:28,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:21:28,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,797 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 02:21:28,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:21:28,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:21:28,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:21:28,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:21:28,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (1/1) ... [2024-11-22 02:21:28,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:21:28,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:21:28,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:21:28,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:21:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:21:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 02:21:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 02:21:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 02:21:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 02:21:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 02:21:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 02:21:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 02:21:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 02:21:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 02:21:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 02:21:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 02:21:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 02:21:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:21:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:21:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:21:29,052 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:21:29,054 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:21:29,872 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-22 02:21:29,872 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:21:29,905 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:21:29,908 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-22 02:21:29,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:21:29 BoogieIcfgContainer [2024-11-22 02:21:29,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:21:29,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:21:29,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:21:29,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:21:29,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:21:28" (1/3) ... [2024-11-22 02:21:29,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8acac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:21:29, skipping insertion in model container [2024-11-22 02:21:29,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:28" (2/3) ... [2024-11-22 02:21:29,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8acac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:21:29, skipping insertion in model container [2024-11-22 02:21:29,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:21:29" (3/3) ... [2024-11-22 02:21:29,922 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2024-11-22 02:21:29,942 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:21:29,942 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:21:30,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:21:30,034 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;@74372857, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:21:30,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:21:30,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 365 states, 333 states have (on average 1.6366366366366367) internal successors, (545), 335 states have internal predecessors, (545), 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) [2024-11-22 02:21:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:30,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:30,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:30,064 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:30,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:30,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1281000696, now seen corresponding path program 1 times [2024-11-22 02:21:30,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:30,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335830098] [2024-11-22 02:21:30,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:30,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:30,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:30,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335830098] [2024-11-22 02:21:30,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335830098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:30,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:30,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:21:30,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50964347] [2024-11-22 02:21:30,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:30,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:21:30,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:30,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:21:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:21:30,735 INFO L87 Difference]: Start difference. First operand has 365 states, 333 states have (on average 1.6366366366366367) internal successors, (545), 335 states have internal predecessors, (545), 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 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:30,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:30,864 INFO L93 Difference]: Finished difference Result 719 states and 1169 transitions. [2024-11-22 02:21:30,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:21:30,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:30,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:30,889 INFO L225 Difference]: With dead ends: 719 [2024-11-22 02:21:30,890 INFO L226 Difference]: Without dead ends: 360 [2024-11-22 02:21:30,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:21:30,902 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 551 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:30,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 559 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:21:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-22 02:21:30,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-22 02:21:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 329 states have (on average 1.5440729483282676) internal successors, (508), 330 states have internal predecessors, (508), 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) [2024-11-22 02:21:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 556 transitions. [2024-11-22 02:21:30,973 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 556 transitions. Word has length 175 [2024-11-22 02:21:30,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:30,975 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 556 transitions. [2024-11-22 02:21:30,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:30,975 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 556 transitions. [2024-11-22 02:21:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:30,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:30,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:30,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:21:30,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:30,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1289358278, now seen corresponding path program 1 times [2024-11-22 02:21:30,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:30,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955799398] [2024-11-22 02:21:30,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:30,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:31,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:31,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:31,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955799398] [2024-11-22 02:21:31,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955799398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:31,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:31,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:21:31,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026545384] [2024-11-22 02:21:31,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:31,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:21:31,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:31,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:21:31,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:21:31,241 INFO L87 Difference]: Start difference. First operand 360 states and 556 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:31,834 INFO L93 Difference]: Finished difference Result 1084 states and 1704 transitions. [2024-11-22 02:21:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:21:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:31,840 INFO L225 Difference]: With dead ends: 1084 [2024-11-22 02:21:31,840 INFO L226 Difference]: Without dead ends: 743 [2024-11-22 02:21:31,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:31,844 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 1057 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:31,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 1537 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:21:31,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-22 02:21:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 716. [2024-11-22 02:21:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 659 states have (on average 1.5538694992412747) internal successors, (1024), 661 states have internal predecessors, (1024), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2024-11-22 02:21:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1111 transitions. [2024-11-22 02:21:31,879 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1111 transitions. Word has length 175 [2024-11-22 02:21:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:31,880 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1111 transitions. [2024-11-22 02:21:31,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1111 transitions. [2024-11-22 02:21:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:31,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:31,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:31,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:21:31,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:31,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:31,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2118987525, now seen corresponding path program 1 times [2024-11-22 02:21:31,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:31,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749195224] [2024-11-22 02:21:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:31,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:32,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:32,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:32,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749195224] [2024-11-22 02:21:32,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749195224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:32,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:32,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:32,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147230162] [2024-11-22 02:21:32,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:32,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:32,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:32,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:32,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:32,102 INFO L87 Difference]: Start difference. First operand 716 states and 1111 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:33,112 INFO L93 Difference]: Finished difference Result 1948 states and 3056 transitions. [2024-11-22 02:21:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:21:33,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:33,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:33,119 INFO L225 Difference]: With dead ends: 1948 [2024-11-22 02:21:33,122 INFO L226 Difference]: Without dead ends: 1251 [2024-11-22 02:21:33,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:21:33,129 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 1179 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:33,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 2996 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 02:21:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-11-22 02:21:33,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1048. [2024-11-22 02:21:33,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 965 states have (on average 1.5461139896373057) internal successors, (1492), 968 states have internal predecessors, (1492), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (66), 63 states have call predecessors, (66), 62 states have call successors, (66) [2024-11-22 02:21:33,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1620 transitions. [2024-11-22 02:21:33,199 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1620 transitions. Word has length 175 [2024-11-22 02:21:33,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:33,200 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1620 transitions. [2024-11-22 02:21:33,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1620 transitions. [2024-11-22 02:21:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:33,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:33,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:33,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:21:33,207 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:33,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:33,208 INFO L85 PathProgramCache]: Analyzing trace with hash 770788093, now seen corresponding path program 1 times [2024-11-22 02:21:33,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:33,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441356953] [2024-11-22 02:21:33,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:33,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:33,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:33,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441356953] [2024-11-22 02:21:33,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441356953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:33,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:33,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:33,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983183790] [2024-11-22 02:21:33,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:33,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:33,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:33,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:33,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:33,424 INFO L87 Difference]: Start difference. First operand 1048 states and 1620 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:34,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:34,693 INFO L93 Difference]: Finished difference Result 3005 states and 4704 transitions. [2024-11-22 02:21:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:21:34,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:34,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:34,703 INFO L225 Difference]: With dead ends: 3005 [2024-11-22 02:21:34,703 INFO L226 Difference]: Without dead ends: 1976 [2024-11-22 02:21:34,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:21:34,707 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 1174 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:34,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 2980 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 02:21:34,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2024-11-22 02:21:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1755. [2024-11-22 02:21:34,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1618 states have (on average 1.549443757725587) internal successors, (2507), 1625 states have internal predecessors, (2507), 100 states have call successors, (100), 30 states have call predecessors, (100), 36 states have return successors, (116), 103 states have call predecessors, (116), 100 states have call successors, (116) [2024-11-22 02:21:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2723 transitions. [2024-11-22 02:21:34,786 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2723 transitions. Word has length 175 [2024-11-22 02:21:34,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:34,787 INFO L471 AbstractCegarLoop]: Abstraction has 1755 states and 2723 transitions. [2024-11-22 02:21:34,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:34,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2723 transitions. [2024-11-22 02:21:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:34,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:34,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:34,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:21:34,791 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:34,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1629845317, now seen corresponding path program 1 times [2024-11-22 02:21:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850475331] [2024-11-22 02:21:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:34,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:34,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850475331] [2024-11-22 02:21:34,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850475331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:34,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:34,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:34,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534925683] [2024-11-22 02:21:34,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:34,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:34,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:34,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:34,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:34,970 INFO L87 Difference]: Start difference. First operand 1755 states and 2723 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:35,944 INFO L93 Difference]: Finished difference Result 5286 states and 8337 transitions. [2024-11-22 02:21:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:21:35,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:35,957 INFO L225 Difference]: With dead ends: 5286 [2024-11-22 02:21:35,958 INFO L226 Difference]: Without dead ends: 3550 [2024-11-22 02:21:35,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:21:35,963 INFO L432 NwaCegarLoop]: 735 mSDtfsCounter, 1169 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:35,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 2968 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 02:21:35,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2024-11-22 02:21:36,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3292. [2024-11-22 02:21:36,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 3041 states have (on average 1.5662610983229202) internal successors, (4763), 3062 states have internal predecessors, (4763), 176 states have call successors, (176), 54 states have call predecessors, (176), 74 states have return successors, (240), 183 states have call predecessors, (240), 176 states have call successors, (240) [2024-11-22 02:21:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 5179 transitions. [2024-11-22 02:21:36,101 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 5179 transitions. Word has length 175 [2024-11-22 02:21:36,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:36,101 INFO L471 AbstractCegarLoop]: Abstraction has 3292 states and 5179 transitions. [2024-11-22 02:21:36,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 5179 transitions. [2024-11-22 02:21:36,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:36,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:36,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:36,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:21:36,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:36,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash -183264451, now seen corresponding path program 1 times [2024-11-22 02:21:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:36,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403306100] [2024-11-22 02:21:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:36,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:36,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:36,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403306100] [2024-11-22 02:21:36,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403306100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:36,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:36,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373246255] [2024-11-22 02:21:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:36,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:36,227 INFO L87 Difference]: Start difference. First operand 3292 states and 5179 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:37,174 INFO L93 Difference]: Finished difference Result 10321 states and 16591 transitions. [2024-11-22 02:21:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:21:37,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:37,202 INFO L225 Difference]: With dead ends: 10321 [2024-11-22 02:21:37,202 INFO L226 Difference]: Without dead ends: 7048 [2024-11-22 02:21:37,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:21:37,212 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 1164 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:37,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 2956 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 02:21:37,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7048 states. [2024-11-22 02:21:37,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7048 to 6717. [2024-11-22 02:21:37,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6717 states, 6220 states have (on average 1.594694533762058) internal successors, (9919), 6287 states have internal predecessors, (9919), 328 states have call successors, (328), 102 states have call predecessors, (328), 168 states have return successors, (584), 343 states have call predecessors, (584), 328 states have call successors, (584) [2024-11-22 02:21:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 10831 transitions. [2024-11-22 02:21:37,513 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 10831 transitions. Word has length 175 [2024-11-22 02:21:37,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:37,515 INFO L471 AbstractCegarLoop]: Abstraction has 6717 states and 10831 transitions. [2024-11-22 02:21:37,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 10831 transitions. [2024-11-22 02:21:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:37,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:37,525 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:37,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:21:37,525 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:37,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:37,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1106431877, now seen corresponding path program 1 times [2024-11-22 02:21:37,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:37,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823046754] [2024-11-22 02:21:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:37,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:37,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:37,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:37,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823046754] [2024-11-22 02:21:37,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823046754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:37,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:37,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:37,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322219516] [2024-11-22 02:21:37,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:37,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:37,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:37,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:37,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:37,673 INFO L87 Difference]: Start difference. First operand 6717 states and 10831 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:38,769 INFO L93 Difference]: Finished difference Result 21736 states and 36041 transitions. [2024-11-22 02:21:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:21:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:38,841 INFO L225 Difference]: With dead ends: 21736 [2024-11-22 02:21:38,841 INFO L226 Difference]: Without dead ends: 15038 [2024-11-22 02:21:38,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:21:38,869 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 1159 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:38,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 2944 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 02:21:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15038 states. [2024-11-22 02:21:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15038 to 14566. [2024-11-22 02:21:39,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14566 states, 13523 states have (on average 1.631220882940176) internal successors, (22059), 13736 states have internal predecessors, (22059), 632 states have call successors, (632), 198 states have call predecessors, (632), 410 states have return successors, (1656), 663 states have call predecessors, (1656), 632 states have call successors, (1656) [2024-11-22 02:21:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14566 states to 14566 states and 24347 transitions. [2024-11-22 02:21:39,543 INFO L78 Accepts]: Start accepts. Automaton has 14566 states and 24347 transitions. Word has length 175 [2024-11-22 02:21:39,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:39,543 INFO L471 AbstractCegarLoop]: Abstraction has 14566 states and 24347 transitions. [2024-11-22 02:21:39,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand 14566 states and 24347 transitions. [2024-11-22 02:21:39,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:39,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:39,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:39,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:21:39,558 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:39,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:39,559 INFO L85 PathProgramCache]: Analyzing trace with hash -720569475, now seen corresponding path program 1 times [2024-11-22 02:21:39,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:39,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849275291] [2024-11-22 02:21:39,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:39,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:39,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:39,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:39,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849275291] [2024-11-22 02:21:39,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849275291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:39,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:39,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:21:39,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828627587] [2024-11-22 02:21:39,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:39,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:21:39,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:39,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:21:39,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:21:39,656 INFO L87 Difference]: Start difference. First operand 14566 states and 24347 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:40,851 INFO L93 Difference]: Finished difference Result 33278 states and 57349 transitions. [2024-11-22 02:21:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:21:40,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:40,957 INFO L225 Difference]: With dead ends: 33278 [2024-11-22 02:21:40,957 INFO L226 Difference]: Without dead ends: 18731 [2024-11-22 02:21:41,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:41,021 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 779 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:41,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1019 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:21:41,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18731 states. [2024-11-22 02:21:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18731 to 14566. [2024-11-22 02:21:41,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14566 states, 13523 states have (on average 1.6287805960215929) internal successors, (22026), 13736 states have internal predecessors, (22026), 632 states have call successors, (632), 198 states have call predecessors, (632), 410 states have return successors, (1656), 663 states have call predecessors, (1656), 632 states have call successors, (1656) [2024-11-22 02:21:41,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14566 states to 14566 states and 24314 transitions. [2024-11-22 02:21:41,573 INFO L78 Accepts]: Start accepts. Automaton has 14566 states and 24314 transitions. Word has length 175 [2024-11-22 02:21:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:41,573 INFO L471 AbstractCegarLoop]: Abstraction has 14566 states and 24314 transitions. [2024-11-22 02:21:41,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 14566 states and 24314 transitions. [2024-11-22 02:21:41,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:41,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:41,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:41,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:21:41,587 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:41,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:41,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1210556159, now seen corresponding path program 1 times [2024-11-22 02:21:41,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:41,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100374396] [2024-11-22 02:21:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:41,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:41,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:41,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100374396] [2024-11-22 02:21:41,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100374396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:41,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:41,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025697062] [2024-11-22 02:21:41,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:41,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:41,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:41,949 INFO L87 Difference]: Start difference. First operand 14566 states and 24314 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:44,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:44,396 INFO L93 Difference]: Finished difference Result 47831 states and 82620 transitions. [2024-11-22 02:21:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:21:44,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:44,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:44,558 INFO L225 Difference]: With dead ends: 47831 [2024-11-22 02:21:44,559 INFO L226 Difference]: Without dead ends: 33284 [2024-11-22 02:21:44,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:21:44,602 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1143 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:44,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 2899 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 02:21:44,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33284 states. [2024-11-22 02:21:46,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33284 to 32613. [2024-11-22 02:21:46,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32613 states, 30316 states have (on average 1.664797466684259) internal successors, (50470), 30983 states have internal predecessors, (50470), 1240 states have call successors, (1240), 390 states have call predecessors, (1240), 1056 states have return successors, (5336), 1303 states have call predecessors, (5336), 1240 states have call successors, (5336) [2024-11-22 02:21:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32613 states to 32613 states and 57046 transitions. [2024-11-22 02:21:46,316 INFO L78 Accepts]: Start accepts. Automaton has 32613 states and 57046 transitions. Word has length 175 [2024-11-22 02:21:46,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:46,317 INFO L471 AbstractCegarLoop]: Abstraction has 32613 states and 57046 transitions. [2024-11-22 02:21:46,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 32613 states and 57046 transitions. [2024-11-22 02:21:46,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:46,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:46,341 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:46,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:21:46,341 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:46,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:46,341 INFO L85 PathProgramCache]: Analyzing trace with hash -112622787, now seen corresponding path program 1 times [2024-11-22 02:21:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997600237] [2024-11-22 02:21:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:46,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:46,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:46,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997600237] [2024-11-22 02:21:46,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997600237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:46,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:46,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:46,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219245767] [2024-11-22 02:21:46,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:46,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:46,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:46,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:46,456 INFO L87 Difference]: Start difference. First operand 32613 states and 57046 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:49,824 INFO L93 Difference]: Finished difference Result 109464 states and 200454 transitions. [2024-11-22 02:21:49,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:21:49,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:21:49,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:50,335 INFO L225 Difference]: With dead ends: 109464 [2024-11-22 02:21:50,335 INFO L226 Difference]: Without dead ends: 76870 [2024-11-22 02:21:50,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:21:50,457 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 1138 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2887 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:50,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 2887 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 02:21:50,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76870 states. [2024-11-22 02:21:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76870 to 75754. [2024-11-22 02:21:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75754 states, 70463 states have (on average 1.7024821537544528) internal successors, (119962), 72524 states have internal predecessors, (119962), 2456 states have call successors, (2456), 774 states have call predecessors, (2456), 2834 states have return successors, (18840), 2583 states have call predecessors, (18840), 2456 states have call successors, (18840) [2024-11-22 02:21:55,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75754 states to 75754 states and 141258 transitions. [2024-11-22 02:21:55,052 INFO L78 Accepts]: Start accepts. Automaton has 75754 states and 141258 transitions. Word has length 175 [2024-11-22 02:21:55,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:55,053 INFO L471 AbstractCegarLoop]: Abstraction has 75754 states and 141258 transitions. [2024-11-22 02:21:55,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:21:55,053 INFO L276 IsEmpty]: Start isEmpty. Operand 75754 states and 141258 transitions. [2024-11-22 02:21:55,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:21:55,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:55,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:55,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:21:55,139 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:55,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:55,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1784356671, now seen corresponding path program 1 times [2024-11-22 02:21:55,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:55,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729997928] [2024-11-22 02:21:55,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:55,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:21:55,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:55,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729997928] [2024-11-22 02:21:55,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729997928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:55,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:55,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:21:55,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279211840] [2024-11-22 02:21:55,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:55,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:21:55,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:55,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:21:55,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:21:55,327 INFO L87 Difference]: Start difference. First operand 75754 states and 141258 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:22:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:03,119 INFO L93 Difference]: Finished difference Result 259399 states and 514252 transitions. [2024-11-22 02:22:03,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:22:03,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-22 02:22:03,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:04,448 INFO L225 Difference]: With dead ends: 259399 [2024-11-22 02:22:04,448 INFO L226 Difference]: Without dead ends: 183664 [2024-11-22 02:22:05,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:22:05,303 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 1133 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:05,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 2875 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 02:22:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183664 states. [2024-11-22 02:22:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183664 to 181719. [2024-11-22 02:22:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181719 states, 168982 states have (on average 1.739084636233445) internal successors, (293874), 175289 states have internal predecessors, (293874), 4888 states have call successors, (4888), 1542 states have call predecessors, (4888), 7848 states have return successors, (70424), 5143 states have call predecessors, (70424), 4888 states have call successors, (70424) [2024-11-22 02:22:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181719 states to 181719 states and 369186 transitions. [2024-11-22 02:22:17,182 INFO L78 Accepts]: Start accepts. Automaton has 181719 states and 369186 transitions. Word has length 175 [2024-11-22 02:22:17,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:17,185 INFO L471 AbstractCegarLoop]: Abstraction has 181719 states and 369186 transitions. [2024-11-22 02:22:17,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:22:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 181719 states and 369186 transitions. [2024-11-22 02:22:17,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:22:17,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:17,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:17,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:22:17,316 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:17,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:17,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2122644221, now seen corresponding path program 1 times [2024-11-22 02:22:17,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:17,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476153845] [2024-11-22 02:22:17,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:17,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:17,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:17,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476153845] [2024-11-22 02:22:17,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476153845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:17,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:17,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:22:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957446846] [2024-11-22 02:22:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:17,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:22:17,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:17,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:22:17,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:17,471 INFO L87 Difference]: Start difference. First operand 181719 states and 369186 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)