./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.09.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 3945fa4b58cef50cb4b44b435a699812e99a1f6375664d08551274c6b50bee45 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:10:20,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:10:20,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:10:20,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:10:20,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:10:20,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:10:20,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:10:20,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:10:20,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:10:20,779 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:10:20,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:10:20,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:10:20,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:10:20,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:10:20,782 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:10:20,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:10:20,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:10:20,783 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:10:20,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:10:20,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:10:20,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:10:20,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:10:20,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:10:20,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:10:20,784 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:10:20,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:10:20,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:10:20,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:10:20,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:10:20,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:10:20,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:10:20,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:10:20,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:10:20,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:10:20,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:10:20,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:10:20,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:10:20,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:10:20,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:10:20,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:10:20,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:10:20,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:10:20,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3945fa4b58cef50cb4b44b435a699812e99a1f6375664d08551274c6b50bee45 [2024-11-11 21:10:21,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:10:21,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:10:21,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:10:21,031 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:10:21,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:10:21,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.09.cil.c [2024-11-11 21:10:22,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:10:22,511 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:10:22,512 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.09.cil.c [2024-11-11 21:10:22,523 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518d72261/668bf6882a944cc7b3aeb5f743a86576/FLAG1c67e4426 [2024-11-11 21:10:22,895 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518d72261/668bf6882a944cc7b3aeb5f743a86576 [2024-11-11 21:10:22,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:10:22,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:10:22,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:10:22,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:10:22,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:10:22,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:10:22" (1/1) ... [2024-11-11 21:10:22,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fd63f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:22, skipping insertion in model container [2024-11-11 21:10:22,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:10:22" (1/1) ... [2024-11-11 21:10:22,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:10:23,115 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.09.cil.c[706,719] [2024-11-11 21:10:23,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:10:23,266 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:10:23,277 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.09.cil.c[706,719] [2024-11-11 21:10:23,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:10:23,367 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:10:23,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23 WrapperNode [2024-11-11 21:10:23,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:10:23,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:10:23,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:10:23,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:10:23,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,413 INFO L138 Inliner]: procedures = 46, calls = 57, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 682 [2024-11-11 21:10:23,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:10:23,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:10:23,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:10:23,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:10:23,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,449 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 21:10:23,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:10:23,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:10:23,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:10:23,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:10:23,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (1/1) ... [2024-11-11 21:10:23,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:10:23,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:10:23,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 21:10:23,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 21:10:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:10:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 21:10:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 21:10:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 21:10:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 21:10:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 21:10:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 21:10:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 21:10:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 21:10:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 21:10:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 21:10:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:10:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 21:10:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 21:10:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:10:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:10:23,664 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:10:23,666 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:10:24,262 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-11 21:10:24,262 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:10:24,284 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:10:24,285 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-11 21:10:24,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:10:24 BoogieIcfgContainer [2024-11-11 21:10:24,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:10:24,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:10:24,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:10:24,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:10:24,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:10:22" (1/3) ... [2024-11-11 21:10:24,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f46fe08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:10:24, skipping insertion in model container [2024-11-11 21:10:24,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:10:23" (2/3) ... [2024-11-11 21:10:24,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f46fe08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:10:24, skipping insertion in model container [2024-11-11 21:10:24,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:10:24" (3/3) ... [2024-11-11 21:10:24,298 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.09.cil.c [2024-11-11 21:10:24,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:10:24,312 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:10:24,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:10:24,385 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;@679729d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:10:24,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:10:24,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 283 states have (on average 1.6289752650176679) internal successors, (461), 285 states have internal predecessors, (461), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 21:10:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:24,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:24,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:24,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:24,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1464474623, now seen corresponding path program 1 times [2024-11-11 21:10:24,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:24,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848304181] [2024-11-11 21:10:24,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:24,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:24,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:24,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848304181] [2024-11-11 21:10:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848304181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:24,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:24,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:10:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312632569] [2024-11-11 21:10:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:25,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:10:25,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:25,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:10:25,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:10:25,068 INFO L87 Difference]: Start difference. First operand has 313 states, 283 states have (on average 1.6289752650176679) internal successors, (461), 285 states have internal predecessors, (461), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:26,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:26,487 INFO L93 Difference]: Finished difference Result 726 states and 1184 transitions. [2024-11-11 21:10:26,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:10:26,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:26,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:26,509 INFO L225 Difference]: With dead ends: 726 [2024-11-11 21:10:26,509 INFO L226 Difference]: Without dead ends: 415 [2024-11-11 21:10:26,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:10:26,516 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 809 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:26,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 622 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:10:26,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-11 21:10:26,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 308. [2024-11-11 21:10:26,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 279 states have (on average 1.5340501792114696) internal successors, (428), 280 states have internal predecessors, (428), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 21:10:26,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 472 transitions. [2024-11-11 21:10:26,581 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 472 transitions. Word has length 151 [2024-11-11 21:10:26,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:26,582 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 472 transitions. [2024-11-11 21:10:26,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:26,583 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 472 transitions. [2024-11-11 21:10:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:26,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:26,588 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:26,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:10:26,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:26,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1126187073, now seen corresponding path program 1 times [2024-11-11 21:10:26,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:26,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683441401] [2024-11-11 21:10:26,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:26,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:26,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:26,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683441401] [2024-11-11 21:10:26,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683441401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:26,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:26,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:10:26,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053414347] [2024-11-11 21:10:26,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:26,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:10:26,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:26,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:10:26,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:10:26,842 INFO L87 Difference]: Start difference. First operand 308 states and 472 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:27,914 INFO L93 Difference]: Finished difference Result 709 states and 1104 transitions. [2024-11-11 21:10:27,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:10:27,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:27,918 INFO L225 Difference]: With dead ends: 709 [2024-11-11 21:10:27,918 INFO L226 Difference]: Without dead ends: 415 [2024-11-11 21:10:27,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:10:27,920 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 796 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:27,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 608 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 21:10:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-11 21:10:27,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 308. [2024-11-11 21:10:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 279 states have (on average 1.5304659498207884) internal successors, (427), 280 states have internal predecessors, (427), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 21:10:27,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 471 transitions. [2024-11-11 21:10:27,948 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 471 transitions. Word has length 151 [2024-11-11 21:10:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:27,948 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 471 transitions. [2024-11-11 21:10:27,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:27,950 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 471 transitions. [2024-11-11 21:10:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:27,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:27,953 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:27,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:10:27,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:27,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:27,954 INFO L85 PathProgramCache]: Analyzing trace with hash 708298371, now seen corresponding path program 1 times [2024-11-11 21:10:27,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:27,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158223920] [2024-11-11 21:10:27,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:28,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:28,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:28,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:28,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:28,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:28,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:28,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:28,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158223920] [2024-11-11 21:10:28,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158223920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:28,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:28,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:10:28,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925096672] [2024-11-11 21:10:28,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:28,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:10:28,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:28,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:10:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:10:28,226 INFO L87 Difference]: Start difference. First operand 308 states and 471 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:29,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:29,997 INFO L93 Difference]: Finished difference Result 1115 states and 1760 transitions. [2024-11-11 21:10:29,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 21:10:29,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:29,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:30,006 INFO L225 Difference]: With dead ends: 1115 [2024-11-11 21:10:30,006 INFO L226 Difference]: Without dead ends: 824 [2024-11-11 21:10:30,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:10:30,009 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 1199 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:30,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1154 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 21:10:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-11 21:10:30,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 610. [2024-11-11 21:10:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 557 states have (on average 1.5421903052064632) internal successors, (859), 559 states have internal predecessors, (859), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-11 21:10:30,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 940 transitions. [2024-11-11 21:10:30,058 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 940 transitions. Word has length 151 [2024-11-11 21:10:30,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:30,059 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 940 transitions. [2024-11-11 21:10:30,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:30,059 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 940 transitions. [2024-11-11 21:10:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:30,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:30,061 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:30,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:10:30,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:30,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash -320578172, now seen corresponding path program 1 times [2024-11-11 21:10:30,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:30,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296610684] [2024-11-11 21:10:30,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:30,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296610684] [2024-11-11 21:10:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296610684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181100926] [2024-11-11 21:10:30,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:30,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:30,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:30,307 INFO L87 Difference]: Start difference. First operand 610 states and 940 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:33,215 INFO L93 Difference]: Finished difference Result 1975 states and 3093 transitions. [2024-11-11 21:10:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:33,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:33,223 INFO L225 Difference]: With dead ends: 1975 [2024-11-11 21:10:33,223 INFO L226 Difference]: Without dead ends: 1382 [2024-11-11 21:10:33,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:33,228 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 1312 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:33,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2035 Invalid, 3539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-11 21:10:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-11-11 21:10:33,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 892. [2024-11-11 21:10:33,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 815 states have (on average 1.5349693251533743) internal successors, (1251), 818 states have internal predecessors, (1251), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-11 21:10:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1368 transitions. [2024-11-11 21:10:33,296 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1368 transitions. Word has length 151 [2024-11-11 21:10:33,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:33,297 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1368 transitions. [2024-11-11 21:10:33,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:33,297 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1368 transitions. [2024-11-11 21:10:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:33,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:33,299 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:33,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:10:33,300 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:33,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:33,300 INFO L85 PathProgramCache]: Analyzing trace with hash -865450746, now seen corresponding path program 1 times [2024-11-11 21:10:33,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:33,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97058650] [2024-11-11 21:10:33,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:33,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:33,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:33,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:33,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:33,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:33,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:33,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97058650] [2024-11-11 21:10:33,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97058650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:33,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:33,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:33,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501799918] [2024-11-11 21:10:33,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:33,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:33,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:33,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:33,511 INFO L87 Difference]: Start difference. First operand 892 states and 1368 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:36,199 INFO L93 Difference]: Finished difference Result 3043 states and 4755 transitions. [2024-11-11 21:10:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:36,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:36,213 INFO L225 Difference]: With dead ends: 3043 [2024-11-11 21:10:36,213 INFO L226 Difference]: Without dead ends: 2168 [2024-11-11 21:10:36,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:36,216 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 1310 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3480 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:36,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 2033 Invalid, 3537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3480 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 21:10:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2024-11-11 21:10:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 1457. [2024-11-11 21:10:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1332 states have (on average 1.5285285285285286) internal successors, (2036), 1337 states have internal predecessors, (2036), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-11 21:10:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2229 transitions. [2024-11-11 21:10:36,290 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2229 transitions. Word has length 151 [2024-11-11 21:10:36,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:36,290 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 2229 transitions. [2024-11-11 21:10:36,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2229 transitions. [2024-11-11 21:10:36,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:36,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:36,293 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:36,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:10:36,294 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:36,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash -190290620, now seen corresponding path program 1 times [2024-11-11 21:10:36,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:36,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103625965] [2024-11-11 21:10:36,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:36,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:36,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:36,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:36,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:36,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:36,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:36,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103625965] [2024-11-11 21:10:36,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103625965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:36,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:36,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:36,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126008213] [2024-11-11 21:10:36,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:36,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:36,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:36,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:36,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:36,530 INFO L87 Difference]: Start difference. First operand 1457 states and 2229 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:39,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:39,075 INFO L93 Difference]: Finished difference Result 5102 states and 7940 transitions. [2024-11-11 21:10:39,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:39,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:39,090 INFO L225 Difference]: With dead ends: 5102 [2024-11-11 21:10:39,092 INFO L226 Difference]: Without dead ends: 3662 [2024-11-11 21:10:39,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:39,096 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 1306 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:39,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 2033 Invalid, 3528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 21:10:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2024-11-11 21:10:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 2588. [2024-11-11 21:10:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2588 states, 2367 states have (on average 1.523447401774398) internal successors, (3606), 2376 states have internal predecessors, (3606), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-11 21:10:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 3957 transitions. [2024-11-11 21:10:39,218 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 3957 transitions. Word has length 151 [2024-11-11 21:10:39,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:39,219 INFO L471 AbstractCegarLoop]: Abstraction has 2588 states and 3957 transitions. [2024-11-11 21:10:39,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 3957 transitions. [2024-11-11 21:10:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:39,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:39,222 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:39,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:10:39,223 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:39,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1138342586, now seen corresponding path program 1 times [2024-11-11 21:10:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:39,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56185568] [2024-11-11 21:10:39,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:39,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:39,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:39,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:39,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:39,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:39,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:39,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:39,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56185568] [2024-11-11 21:10:39,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56185568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:39,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:39,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:39,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016062088] [2024-11-11 21:10:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:39,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:39,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:39,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:39,431 INFO L87 Difference]: Start difference. First operand 2588 states and 3957 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:42,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:42,220 INFO L93 Difference]: Finished difference Result 9219 states and 14326 transitions. [2024-11-11 21:10:42,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:42,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:42,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:42,243 INFO L225 Difference]: With dead ends: 9219 [2024-11-11 21:10:42,244 INFO L226 Difference]: Without dead ends: 6648 [2024-11-11 21:10:42,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:42,253 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 1308 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3457 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:42,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 2033 Invalid, 3514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3457 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 21:10:42,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2024-11-11 21:10:42,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 4855. [2024-11-11 21:10:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 4442 states have (on average 1.520036019810896) internal successors, (6752), 4459 states have internal predecessors, (6752), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-11 21:10:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 7437 transitions. [2024-11-11 21:10:42,557 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 7437 transitions. Word has length 151 [2024-11-11 21:10:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:42,559 INFO L471 AbstractCegarLoop]: Abstraction has 4855 states and 7437 transitions. [2024-11-11 21:10:42,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:42,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 7437 transitions. [2024-11-11 21:10:42,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:42,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:42,569 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:42,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:10:42,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:42,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:42,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1723114236, now seen corresponding path program 1 times [2024-11-11 21:10:42,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:42,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601252262] [2024-11-11 21:10:42,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:42,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:42,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:42,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:42,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:42,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:42,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:42,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601252262] [2024-11-11 21:10:42,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601252262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:42,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:42,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189774908] [2024-11-11 21:10:42,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:42,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:42,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:42,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:42,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:42,749 INFO L87 Difference]: Start difference. First operand 4855 states and 7437 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:45,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:45,704 INFO L93 Difference]: Finished difference Result 17437 states and 27128 transitions. [2024-11-11 21:10:45,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:45,705 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:45,766 INFO L225 Difference]: With dead ends: 17437 [2024-11-11 21:10:45,766 INFO L226 Difference]: Without dead ends: 12599 [2024-11-11 21:10:45,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:45,781 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 1304 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3429 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:45,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 2033 Invalid, 3486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3429 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 21:10:45,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12599 states. [2024-11-11 21:10:46,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12599 to 9419. [2024-11-11 21:10:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9419 states, 8622 states have (on average 1.518905126420784) internal successors, (13096), 8655 states have internal predecessors, (13096), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-11 21:10:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9419 states to 9419 states and 14503 transitions. [2024-11-11 21:10:46,271 INFO L78 Accepts]: Start accepts. Automaton has 9419 states and 14503 transitions. Word has length 151 [2024-11-11 21:10:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:46,271 INFO L471 AbstractCegarLoop]: Abstraction has 9419 states and 14503 transitions. [2024-11-11 21:10:46,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:46,272 INFO L276 IsEmpty]: Start isEmpty. Operand 9419 states and 14503 transitions. [2024-11-11 21:10:46,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:46,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:46,285 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:46,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:10:46,286 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:46,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2142194754, now seen corresponding path program 1 times [2024-11-11 21:10:46,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:46,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660479577] [2024-11-11 21:10:46,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:46,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:46,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:46,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660479577] [2024-11-11 21:10:46,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660479577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:46,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:46,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:46,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157779866] [2024-11-11 21:10:46,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:46,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:46,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:46,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:46,536 INFO L87 Difference]: Start difference. First operand 9419 states and 14503 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:48,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:48,060 INFO L93 Difference]: Finished difference Result 22018 states and 34494 transitions. [2024-11-11 21:10:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:10:48,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:48,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:48,108 INFO L225 Difference]: With dead ends: 22018 [2024-11-11 21:10:48,109 INFO L226 Difference]: Without dead ends: 12616 [2024-11-11 21:10:48,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:10:48,135 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 933 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:48,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1010 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 21:10:48,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12616 states. [2024-11-11 21:10:48,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12616 to 9419. [2024-11-11 21:10:48,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9419 states, 8622 states have (on average 1.5150777081883553) internal successors, (13063), 8655 states have internal predecessors, (13063), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-11 21:10:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9419 states to 9419 states and 14470 transitions. [2024-11-11 21:10:48,601 INFO L78 Accepts]: Start accepts. Automaton has 9419 states and 14470 transitions. Word has length 151 [2024-11-11 21:10:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:48,602 INFO L471 AbstractCegarLoop]: Abstraction has 9419 states and 14470 transitions. [2024-11-11 21:10:48,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9419 states and 14470 transitions. [2024-11-11 21:10:48,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:48,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:48,613 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:48,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:10:48,616 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:48,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:48,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1435598148, now seen corresponding path program 1 times [2024-11-11 21:10:48,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:48,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089409310] [2024-11-11 21:10:48,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:48,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:48,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:48,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:48,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:48,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:48,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:48,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089409310] [2024-11-11 21:10:48,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089409310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:48,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:48,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:48,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445465188] [2024-11-11 21:10:48,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:48,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:48,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:48,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:48,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:48,822 INFO L87 Difference]: Start difference. First operand 9419 states and 14470 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:52,245 INFO L93 Difference]: Finished difference Result 33873 states and 52756 transitions. [2024-11-11 21:10:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:52,326 INFO L225 Difference]: With dead ends: 33873 [2024-11-11 21:10:52,326 INFO L226 Difference]: Without dead ends: 24471 [2024-11-11 21:10:52,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:52,353 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 1296 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3391 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:52,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 2033 Invalid, 3448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3391 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 21:10:52,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24471 states. [2024-11-11 21:10:53,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24471 to 18609. [2024-11-11 21:10:53,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18609 states, 17044 states have (on average 1.5134358131893921) internal successors, (25795), 17109 states have internal predecessors, (25795), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-11 21:10:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18609 states to 18609 states and 28808 transitions. [2024-11-11 21:10:53,452 INFO L78 Accepts]: Start accepts. Automaton has 18609 states and 28808 transitions. Word has length 151 [2024-11-11 21:10:53,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:53,452 INFO L471 AbstractCegarLoop]: Abstraction has 18609 states and 28808 transitions. [2024-11-11 21:10:53,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:53,453 INFO L276 IsEmpty]: Start isEmpty. Operand 18609 states and 28808 transitions. [2024-11-11 21:10:53,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:10:53,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:53,477 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:53,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:10:53,477 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:53,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1912331262, now seen corresponding path program 1 times [2024-11-11 21:10:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:53,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533153778] [2024-11-11 21:10:53,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:53,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:10:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:10:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:10:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:10:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:53,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:53,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533153778] [2024-11-11 21:10:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533153778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:53,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:53,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990684778] [2024-11-11 21:10:53,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:53,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:53,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:53,640 INFO L87 Difference]: Start difference. First operand 18609 states and 28808 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:58,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:58,290 INFO L93 Difference]: Finished difference Result 66813 states and 104884 transitions. [2024-11-11 21:10:58,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:10:58,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:10:58,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:58,453 INFO L225 Difference]: With dead ends: 66813 [2024-11-11 21:10:58,453 INFO L226 Difference]: Without dead ends: 48221 [2024-11-11 21:10:58,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:10:58,496 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 1295 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:58,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 2033 Invalid, 3435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3378 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 21:10:58,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48221 states. [2024-11-11 21:11:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48221 to 37050. [2024-11-11 21:11:00,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37050 states, 33949 states have (on average 1.5125335061415652) internal successors, (51349), 34078 states have internal predecessors, (51349), 2198 states have call successors, (2198), 774 states have call predecessors, (2198), 902 states have return successors, (4513), 2325 states have call predecessors, (4513), 2198 states have call successors, (4513) [2024-11-11 21:11:00,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37050 states to 37050 states and 58060 transitions. [2024-11-11 21:11:00,244 INFO L78 Accepts]: Start accepts. Automaton has 37050 states and 58060 transitions. Word has length 151 [2024-11-11 21:11:00,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:11:00,245 INFO L471 AbstractCegarLoop]: Abstraction has 37050 states and 58060 transitions. [2024-11-11 21:11:00,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:11:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 37050 states and 58060 transitions. [2024-11-11 21:11:00,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:11:00,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:11:00,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:11:00,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:11:00,458 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:11:00,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:11:00,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1050497660, now seen corresponding path program 1 times [2024-11-11 21:11:00,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:11:00,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934197660] [2024-11-11 21:11:00,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:11:00,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:11:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:00,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:11:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:00,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:11:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:00,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:11:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:00,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:11:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:00,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:11:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:11:00,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:11:00,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934197660] [2024-11-11 21:11:00,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934197660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:11:00,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:11:00,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:11:00,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464149998] [2024-11-11 21:11:00,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:11:00,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:11:00,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:11:00,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:11:00,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:11:00,609 INFO L87 Difference]: Start difference. First operand 37050 states and 58060 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:11:07,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:11:07,728 INFO L93 Difference]: Finished difference Result 148564 states and 235052 transitions. [2024-11-11 21:11:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 21:11:07,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-11 21:11:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:11:08,159 INFO L225 Difference]: With dead ends: 148564 [2024-11-11 21:11:08,159 INFO L226 Difference]: Without dead ends: 111531 [2024-11-11 21:11:08,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-11 21:11:08,268 INFO L435 NwaCegarLoop]: 452 mSDtfsCounter, 1377 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 3445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:11:08,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 2005 Invalid, 3445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 21:11:08,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111531 states. [2024-11-11 21:11:12,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111531 to 73547. [2024-11-11 21:11:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73547 states, 67502 states have (on average 1.514962519629048) internal successors, (102263), 67759 states have internal predecessors, (102263), 4246 states have call successors, (4246), 1542 states have call predecessors, (4246), 1798 states have return successors, (11063), 4501 states have call predecessors, (11063), 4246 states have call successors, (11063) [2024-11-11 21:11:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73547 states to 73547 states and 117572 transitions. [2024-11-11 21:11:12,719 INFO L78 Accepts]: Start accepts. Automaton has 73547 states and 117572 transitions. Word has length 151 [2024-11-11 21:11:12,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:11:12,719 INFO L471 AbstractCegarLoop]: Abstraction has 73547 states and 117572 transitions. [2024-11-11 21:11:12,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:11:12,719 INFO L276 IsEmpty]: Start isEmpty. Operand 73547 states and 117572 transitions. [2024-11-11 21:11:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 21:11:12,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:11:12,796 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:11:12,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 21:11:12,796 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:11:12,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:11:12,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1194060738, now seen corresponding path program 1 times [2024-11-11 21:11:12,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:11:12,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941831250] [2024-11-11 21:11:12,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:11:12,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:11:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:12,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:11:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:12,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:11:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:12,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:11:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:12,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:11:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:12,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 21:11:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:11:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:11:12,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:11:12,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941831250] [2024-11-11 21:11:12,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941831250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:11:12,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:11:12,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:11:12,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665546017] [2024-11-11 21:11:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:11:12,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:11:12,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:11:12,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:11:12,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:11:12,957 INFO L87 Difference]: Start difference. First operand 73547 states and 117572 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)