./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.05.cil-1.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/combinations/Problem05_label47+token_ring.05.cil-1.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 eb02e23cacfa9dfcb6b910fbdb7f96346be741b0dc92ba35a0c3f2fde349f0cf --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:17:36,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:17:36,650 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:17:36,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:17:36,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:17:36,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:17:36,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:17:36,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:17:36,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:17:36,696 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:17:36,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:17:36,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:17:36,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:17:36,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:17:36,697 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:17:36,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:17:36,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:17:36,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:17:36,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:17:36,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:17:36,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:17:36,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:17:36,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:17:36,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:17:36,703 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:17:36,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:17:36,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:17:36,704 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:17:36,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:17:36,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:17:36,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:17:36,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:17:36,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:17:36,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:17:36,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:17:36,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:17:36,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:17:36,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:17:36,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:17:36,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:17:36,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:17:36,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:17:36,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb02e23cacfa9dfcb6b910fbdb7f96346be741b0dc92ba35a0c3f2fde349f0cf [2024-11-11 22:17:36,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:17:36,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:17:36,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:17:36,953 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:17:36,953 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:17:36,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.05.cil-1.c [2024-11-11 22:17:38,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:17:38,766 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:17:38,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.05.cil-1.c [2024-11-11 22:17:38,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e79b722/672b204f6b82446e9cb7840fd4535b26/FLAGa7d1ff966 [2024-11-11 22:17:38,825 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e79b722/672b204f6b82446e9cb7840fd4535b26 [2024-11-11 22:17:38,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:17:38,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:17:38,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:17:38,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:17:38,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:17:38,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:17:38" (1/1) ... [2024-11-11 22:17:38,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fa18b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:38, skipping insertion in model container [2024-11-11 22:17:38,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:17:38" (1/1) ... [2024-11-11 22:17:38,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:17:40,350 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/combinations/Problem05_label47+token_ring.05.cil-1.c[377612,377625] [2024-11-11 22:17:40,376 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/combinations/Problem05_label47+token_ring.05.cil-1.c[383339,383352] [2024-11-11 22:17:40,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:17:40,543 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:17:41,256 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/combinations/Problem05_label47+token_ring.05.cil-1.c[377612,377625] [2024-11-11 22:17:41,261 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/combinations/Problem05_label47+token_ring.05.cil-1.c[383339,383352] [2024-11-11 22:17:41,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:17:41,334 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:17:41,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41 WrapperNode [2024-11-11 22:17:41,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:17:41,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:17:41,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:17:41,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:17:41,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:41,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:41,787 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-11-11 22:17:41,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:17:41,788 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:17:41,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:17:41,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:17:41,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:41,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:41,910 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:41,979 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 22:17:41,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:41,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:42,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:42,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:42,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:42,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:42,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:17:42,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:17:42,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:17:42,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:17:42,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (1/1) ... [2024-11-11 22:17:42,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:17:42,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:17:42,276 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 22:17:42,280 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 22:17:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:17:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:17:42,319 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:17:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:17:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:17:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:17:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:17:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:17:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:17:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:17:42,320 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:17:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:17:42,321 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:17:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:17:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:17:42,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:17:42,473 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:17:42,475 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:17:50,872 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-11 22:17:50,873 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:17:51,006 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:17:51,006 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-11 22:17:51,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:17:51 BoogieIcfgContainer [2024-11-11 22:17:51,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:17:51,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:17:51,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:17:51,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:17:51,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:17:38" (1/3) ... [2024-11-11 22:17:51,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5815629f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:17:51, skipping insertion in model container [2024-11-11 22:17:51,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:41" (2/3) ... [2024-11-11 22:17:51,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5815629f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:17:51, skipping insertion in model container [2024-11-11 22:17:51,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:17:51" (3/3) ... [2024-11-11 22:17:51,014 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.05.cil-1.c [2024-11-11 22:17:51,027 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:17:51,027 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:17:51,123 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:17:51,129 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;@5cd6f373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:17:51,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:17:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-11 22:17:51,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:17:51,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:51,151 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] [2024-11-11 22:17:51,152 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:51,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:51,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1103952823, now seen corresponding path program 1 times [2024-11-11 22:17:51,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:51,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959984802] [2024-11-11 22:17:51,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:51,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:17:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:17:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:17:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:17:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,589 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 22:17:51,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:51,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959984802] [2024-11-11 22:17:51,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959984802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:51,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:51,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:17:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451488892] [2024-11-11 22:17:51,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:51,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:17:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:51,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:17:51,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:17:51,625 INFO L87 Difference]: Start difference. First operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 22:17:52,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:52,726 INFO L93 Difference]: Finished difference Result 4849 states and 8937 transitions. [2024-11-11 22:17:52,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:17:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 101 [2024-11-11 22:17:52,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:52,745 INFO L225 Difference]: With dead ends: 4849 [2024-11-11 22:17:52,745 INFO L226 Difference]: Without dead ends: 2394 [2024-11-11 22:17:52,752 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 22:17:52,755 INFO L435 NwaCegarLoop]: 4222 mSDtfsCounter, 517 mSDsluCounter, 12295 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 16517 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:52,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 16517 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:17:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2024-11-11 22:17:52,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2329. [2024-11-11 22:17:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2302 states have (on average 1.8388357949609035) internal successors, (4233), 2304 states have internal predecessors, (4233), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-11 22:17:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4271 transitions. [2024-11-11 22:17:52,849 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4271 transitions. Word has length 101 [2024-11-11 22:17:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:52,849 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4271 transitions. [2024-11-11 22:17:52,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 22:17:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4271 transitions. [2024-11-11 22:17:52,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:17:52,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:52,853 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] [2024-11-11 22:17:52,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:17:52,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:52,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:52,855 INFO L85 PathProgramCache]: Analyzing trace with hash -773110407, now seen corresponding path program 1 times [2024-11-11 22:17:52,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:52,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060218983] [2024-11-11 22:17:52,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:52,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:52,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:52,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:17:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:52,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:17:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:53,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:17:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:53,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:17:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:53,013 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 22:17:53,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:53,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060218983] [2024-11-11 22:17:53,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060218983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:53,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:53,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:17:53,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883623963] [2024-11-11 22:17:53,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:53,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:17:53,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:53,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:17:53,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:17:53,016 INFO L87 Difference]: Start difference. First operand 2329 states and 4271 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 22:17:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:54,073 INFO L93 Difference]: Finished difference Result 2853 states and 5090 transitions. [2024-11-11 22:17:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:17:54,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 101 [2024-11-11 22:17:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:54,083 INFO L225 Difference]: With dead ends: 2853 [2024-11-11 22:17:54,083 INFO L226 Difference]: Without dead ends: 2658 [2024-11-11 22:17:54,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:17:54,085 INFO L435 NwaCegarLoop]: 4137 mSDtfsCounter, 4719 mSDsluCounter, 12401 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 16538 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:54,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4731 Valid, 16538 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:17:54,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-11-11 22:17:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2529. [2024-11-11 22:17:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2481 states have (on average 1.8170092704554615) internal successors, (4508), 2484 states have internal predecessors, (4508), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-11 22:17:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 4577 transitions. [2024-11-11 22:17:54,140 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 4577 transitions. Word has length 101 [2024-11-11 22:17:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:54,140 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 4577 transitions. [2024-11-11 22:17:54,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 22:17:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 4577 transitions. [2024-11-11 22:17:54,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:17:54,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:54,144 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] [2024-11-11 22:17:54,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:17:54,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:54,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:54,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972285, now seen corresponding path program 1 times [2024-11-11 22:17:54,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:54,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472131471] [2024-11-11 22:17:54,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:54,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:54,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:54,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:17:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:54,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:17:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:54,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:17:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:54,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:17:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:54,306 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 22:17:54,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472131471] [2024-11-11 22:17:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472131471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:54,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:54,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:54,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816903787] [2024-11-11 22:17:54,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:54,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:54,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:54,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:54,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:54,309 INFO L87 Difference]: Start difference. First operand 2529 states and 4577 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:17:56,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:56,020 INFO L93 Difference]: Finished difference Result 3323 states and 5813 transitions. [2024-11-11 22:17:56,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:17:56,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:17:56,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:56,031 INFO L225 Difference]: With dead ends: 3323 [2024-11-11 22:17:56,031 INFO L226 Difference]: Without dead ends: 2928 [2024-11-11 22:17:56,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:17:56,033 INFO L435 NwaCegarLoop]: 4269 mSDtfsCounter, 4734 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 21131 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:56,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4746 Valid, 21131 Invalid, 1789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:17:56,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2024-11-11 22:17:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2716. [2024-11-11 22:17:56,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2647 states have (on average 1.797128825085002) internal successors, (4757), 2651 states have internal predecessors, (4757), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-11 22:17:56,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4856 transitions. [2024-11-11 22:17:56,111 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4856 transitions. Word has length 101 [2024-11-11 22:17:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:56,111 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4856 transitions. [2024-11-11 22:17:56,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:17:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4856 transitions. [2024-11-11 22:17:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:17:56,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:56,114 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] [2024-11-11 22:17:56,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:17:56,114 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:56,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:56,115 INFO L85 PathProgramCache]: Analyzing trace with hash -74158661, now seen corresponding path program 1 times [2024-11-11 22:17:56,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:56,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004254740] [2024-11-11 22:17:56,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:56,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:56,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:56,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:17:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:56,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:17:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:56,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:17:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:56,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:17:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:56,271 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 22:17:56,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:56,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004254740] [2024-11-11 22:17:56,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004254740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:56,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:56,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658749573] [2024-11-11 22:17:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:56,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:56,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:56,274 INFO L87 Difference]: Start difference. First operand 2716 states and 4856 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:17:58,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:58,193 INFO L93 Difference]: Finished difference Result 4014 states and 6872 transitions. [2024-11-11 22:17:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:17:58,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:17:58,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:58,208 INFO L225 Difference]: With dead ends: 4014 [2024-11-11 22:17:58,208 INFO L226 Difference]: Without dead ends: 3432 [2024-11-11 22:17:58,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:17:58,214 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4728 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:58,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 21129 Invalid, 1770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:17:58,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-11 22:17:58,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3094. [2024-11-11 22:17:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 2983 states have (on average 1.763995977204157) internal successors, (5262), 2989 states have internal predecessors, (5262), 75 states have call successors, (75), 30 states have call predecessors, (75), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-11 22:17:58,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 5425 transitions. [2024-11-11 22:17:58,345 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 5425 transitions. Word has length 101 [2024-11-11 22:17:58,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:58,346 INFO L471 AbstractCegarLoop]: Abstraction has 3094 states and 5425 transitions. [2024-11-11 22:17:58,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:17:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 5425 transitions. [2024-11-11 22:17:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:17:58,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:58,349 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] [2024-11-11 22:17:58,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:17:58,349 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:58,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:58,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1492599289, now seen corresponding path program 1 times [2024-11-11 22:17:58,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:58,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214345552] [2024-11-11 22:17:58,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:58,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:58,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:58,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:17:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:58,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:17:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:58,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:17:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:58,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:17:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:58,562 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 22:17:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:58,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214345552] [2024-11-11 22:17:58,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214345552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:58,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:58,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:58,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897778483] [2024-11-11 22:17:58,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:58,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:58,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:58,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:58,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:58,645 INFO L87 Difference]: Start difference. First operand 3094 states and 5425 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:00,512 INFO L93 Difference]: Finished difference Result 5354 states and 8917 transitions. [2024-11-11 22:18:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:00,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:00,536 INFO L225 Difference]: With dead ends: 5354 [2024-11-11 22:18:00,537 INFO L226 Difference]: Without dead ends: 4394 [2024-11-11 22:18:00,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:00,546 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4727 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:00,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 21129 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:18:00,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2024-11-11 22:18:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3851. [2024-11-11 22:18:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3656 states have (on average 1.7155361050328228) internal successors, (6272), 3666 states have internal predecessors, (6272), 131 states have call successors, (131), 54 states have call predecessors, (131), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-11 22:18:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 6569 transitions. [2024-11-11 22:18:00,664 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 6569 transitions. Word has length 101 [2024-11-11 22:18:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:00,665 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 6569 transitions. [2024-11-11 22:18:00,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 6569 transitions. [2024-11-11 22:18:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:18:00,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:00,667 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] [2024-11-11 22:18:00,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:18:00,667 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:00,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash 434761211, now seen corresponding path program 1 times [2024-11-11 22:18:00,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:00,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136885661] [2024-11-11 22:18:00,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:00,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:00,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:18:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:00,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:18:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:00,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:18:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:00,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:18:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:00,846 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 22:18:00,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:00,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136885661] [2024-11-11 22:18:00,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136885661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:00,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:00,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:00,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194347214] [2024-11-11 22:18:00,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:00,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:00,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:00,848 INFO L87 Difference]: Start difference. First operand 3851 states and 6569 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:02,528 INFO L93 Difference]: Finished difference Result 8033 states and 13023 transitions. [2024-11-11 22:18:02,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:02,554 INFO L225 Difference]: With dead ends: 8033 [2024-11-11 22:18:02,554 INFO L226 Difference]: Without dead ends: 6316 [2024-11-11 22:18:02,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:02,563 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4726 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:02,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 21129 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:18:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2024-11-11 22:18:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 5372. [2024-11-11 22:18:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5009 states have (on average 1.657416650029946) internal successors, (8302), 5027 states have internal predecessors, (8302), 243 states have call successors, (243), 102 states have call predecessors, (243), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-11 22:18:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8885 transitions. [2024-11-11 22:18:02,897 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8885 transitions. Word has length 101 [2024-11-11 22:18:02,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:02,898 INFO L471 AbstractCegarLoop]: Abstraction has 5372 states and 8885 transitions. [2024-11-11 22:18:02,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8885 transitions. [2024-11-11 22:18:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:18:02,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:02,901 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] [2024-11-11 22:18:02,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:18:02,907 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:02,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:02,908 INFO L85 PathProgramCache]: Analyzing trace with hash -707741255, now seen corresponding path program 1 times [2024-11-11 22:18:02,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:02,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564070767] [2024-11-11 22:18:02,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:02,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:18:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:18:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:18:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:18:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,169 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 22:18:03,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:03,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564070767] [2024-11-11 22:18:03,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564070767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:03,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:03,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:03,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961955104] [2024-11-11 22:18:03,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:03,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:03,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:03,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:03,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:03,175 INFO L87 Difference]: Start difference. First operand 5372 states and 8885 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:04,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:04,896 INFO L93 Difference]: Finished difference Result 14656 states and 23187 transitions. [2024-11-11 22:18:04,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:18:04,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:04,942 INFO L225 Difference]: With dead ends: 14656 [2024-11-11 22:18:04,942 INFO L226 Difference]: Without dead ends: 11418 [2024-11-11 22:18:04,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:18:04,959 INFO L435 NwaCegarLoop]: 4149 mSDtfsCounter, 4988 mSDsluCounter, 16518 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 20667 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:04,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 20667 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:18:04,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2024-11-11 22:18:05,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8381. [2024-11-11 22:18:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 7698 states have (on average 1.6045726162639646) internal successors, (12352), 7732 states have internal predecessors, (12352), 451 states have call successors, (451), 198 states have call predecessors, (451), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-11 22:18:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 13529 transitions. [2024-11-11 22:18:05,484 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 13529 transitions. Word has length 101 [2024-11-11 22:18:05,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:05,490 INFO L471 AbstractCegarLoop]: Abstraction has 8381 states and 13529 transitions. [2024-11-11 22:18:05,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:05,491 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 13529 transitions. [2024-11-11 22:18:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:18:05,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:05,506 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] [2024-11-11 22:18:05,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:18:05,506 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:05,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:05,507 INFO L85 PathProgramCache]: Analyzing trace with hash -467501509, now seen corresponding path program 1 times [2024-11-11 22:18:05,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:05,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544444711] [2024-11-11 22:18:05,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:05,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:05,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:05,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:18:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:05,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:18:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:05,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:18:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:05,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:18:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:05,649 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 22:18:05,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:05,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544444711] [2024-11-11 22:18:05,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544444711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:05,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:05,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:05,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760553829] [2024-11-11 22:18:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:05,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:05,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:05,651 INFO L87 Difference]: Start difference. First operand 8381 states and 13529 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:07,846 INFO L93 Difference]: Finished difference Result 26111 states and 41017 transitions. [2024-11-11 22:18:07,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:18:07,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:07,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:07,904 INFO L225 Difference]: With dead ends: 26111 [2024-11-11 22:18:07,904 INFO L226 Difference]: Without dead ends: 19864 [2024-11-11 22:18:07,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:18:07,926 INFO L435 NwaCegarLoop]: 4264 mSDtfsCounter, 4766 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 21115 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:07,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4777 Valid, 21115 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:18:07,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19864 states. [2024-11-11 22:18:08,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19864 to 14222. [2024-11-11 22:18:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14222 states, 12915 states have (on average 1.564847077042199) internal successors, (20210), 12981 states have internal predecessors, (20210), 851 states have call successors, (851), 390 states have call predecessors, (851), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-11 22:18:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14222 states to 14222 states and 22705 transitions. [2024-11-11 22:18:08,860 INFO L78 Accepts]: Start accepts. Automaton has 14222 states and 22705 transitions. Word has length 101 [2024-11-11 22:18:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:08,860 INFO L471 AbstractCegarLoop]: Abstraction has 14222 states and 22705 transitions. [2024-11-11 22:18:08,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14222 states and 22705 transitions. [2024-11-11 22:18:08,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:18:08,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:08,873 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] [2024-11-11 22:18:08,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:18:08,874 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:08,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:08,874 INFO L85 PathProgramCache]: Analyzing trace with hash 371532153, now seen corresponding path program 1 times [2024-11-11 22:18:08,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:08,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845536041] [2024-11-11 22:18:08,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:08,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:08,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:08,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:18:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:18:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:18:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:18:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:09,038 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 22:18:09,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:09,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845536041] [2024-11-11 22:18:09,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845536041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:09,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:09,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:09,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636126363] [2024-11-11 22:18:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:09,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:09,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:09,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:09,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:09,046 INFO L87 Difference]: Start difference. First operand 14222 states and 22705 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:11,784 INFO L93 Difference]: Finished difference Result 47950 states and 75583 transitions. [2024-11-11 22:18:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:18:11,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:11,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:11,891 INFO L225 Difference]: With dead ends: 47950 [2024-11-11 22:18:11,891 INFO L226 Difference]: Without dead ends: 35862 [2024-11-11 22:18:11,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:18:11,936 INFO L435 NwaCegarLoop]: 4265 mSDtfsCounter, 4858 mSDsluCounter, 16854 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 21119 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:11,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 21119 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:18:11,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35862 states. [2024-11-11 22:18:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35862 to 26031. [2024-11-11 22:18:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26031 states, 23508 states have (on average 1.5404117747149906) internal successors, (36212), 23638 states have internal predecessors, (36212), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-11 22:18:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26031 states to 26031 states and 41765 transitions. [2024-11-11 22:18:13,324 INFO L78 Accepts]: Start accepts. Automaton has 26031 states and 41765 transitions. Word has length 101 [2024-11-11 22:18:13,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:13,325 INFO L471 AbstractCegarLoop]: Abstraction has 26031 states and 41765 transitions. [2024-11-11 22:18:13,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand 26031 states and 41765 transitions. [2024-11-11 22:18:13,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:18:13,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:13,342 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] [2024-11-11 22:18:13,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:18:13,342 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:13,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash 398597755, now seen corresponding path program 1 times [2024-11-11 22:18:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:13,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528191527] [2024-11-11 22:18:13,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:13,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:13,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:13,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:18:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:13,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:18:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:13,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:18:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:13,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:18:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:13,637 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 22:18:13,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:13,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528191527] [2024-11-11 22:18:13,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528191527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:13,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:13,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:13,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453746782] [2024-11-11 22:18:13,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:13,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:13,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:13,638 INFO L87 Difference]: Start difference. First operand 26031 states and 41765 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:17,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:17,878 INFO L93 Difference]: Finished difference Result 90861 states and 145477 transitions. [2024-11-11 22:18:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:18:17,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:17,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:18,070 INFO L225 Difference]: With dead ends: 90861 [2024-11-11 22:18:18,071 INFO L226 Difference]: Without dead ends: 66964 [2024-11-11 22:18:18,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:18:18,335 INFO L435 NwaCegarLoop]: 4265 mSDtfsCounter, 4824 mSDsluCounter, 16854 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 21119 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:18,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4842 Valid, 21119 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:18:18,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66964 states. [2024-11-11 22:18:21,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66964 to 49584. [2024-11-11 22:18:21,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49584 states, 44693 states have (on average 1.5277112746962611) internal successors, (68278), 44951 states have internal predecessors, (68278), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-11 22:18:21,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49584 states to 49584 states and 81277 transitions. [2024-11-11 22:18:21,303 INFO L78 Accepts]: Start accepts. Automaton has 49584 states and 81277 transitions. Word has length 101 [2024-11-11 22:18:21,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:21,304 INFO L471 AbstractCegarLoop]: Abstraction has 49584 states and 81277 transitions. [2024-11-11 22:18:21,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand 49584 states and 81277 transitions. [2024-11-11 22:18:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:18:21,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:21,337 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] [2024-11-11 22:18:21,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:18:21,338 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:21,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:21,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1678739143, now seen corresponding path program 1 times [2024-11-11 22:18:21,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:21,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892482469] [2024-11-11 22:18:21,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:21,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:18:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:18:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:18:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:18:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:21,484 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 22:18:21,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:21,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892482469] [2024-11-11 22:18:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892482469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:21,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:21,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144569591] [2024-11-11 22:18:21,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:21,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:21,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:21,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:21,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:21,486 INFO L87 Difference]: Start difference. First operand 49584 states and 81277 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:25,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:25,343 INFO L93 Difference]: Finished difference Result 108888 states and 182936 transitions. [2024-11-11 22:18:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:18:25,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:25,551 INFO L225 Difference]: With dead ends: 108888 [2024-11-11 22:18:25,551 INFO L226 Difference]: Without dead ends: 61438 [2024-11-11 22:18:25,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:18:25,649 INFO L435 NwaCegarLoop]: 4122 mSDtfsCounter, 4533 mSDsluCounter, 16337 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 20459 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:25,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 20459 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:18:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61438 states. [2024-11-11 22:18:28,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61438 to 49584. [2024-11-11 22:18:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49584 states, 44693 states have (on average 1.5219609334795159) internal successors, (68021), 44951 states have internal predecessors, (68021), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-11 22:18:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49584 states to 49584 states and 81020 transitions. [2024-11-11 22:18:28,933 INFO L78 Accepts]: Start accepts. Automaton has 49584 states and 81020 transitions. Word has length 101 [2024-11-11 22:18:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:28,933 INFO L471 AbstractCegarLoop]: Abstraction has 49584 states and 81020 transitions. [2024-11-11 22:18:28,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 22:18:28,933 INFO L276 IsEmpty]: Start isEmpty. Operand 49584 states and 81020 transitions. [2024-11-11 22:18:28,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:18:28,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:28,962 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] [2024-11-11 22:18:28,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:18:28,962 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:28,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:28,963 INFO L85 PathProgramCache]: Analyzing trace with hash -791516297, now seen corresponding path program 1 times [2024-11-11 22:18:28,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:28,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553616429] [2024-11-11 22:18:28,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:28,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:28,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:29,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:18:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:29,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:18:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:29,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:18:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:29,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:18:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:29,057 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 22:18:29,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:29,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553616429] [2024-11-11 22:18:29,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553616429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:29,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:29,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:18:29,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174442720] [2024-11-11 22:18:29,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:29,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:18:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:18:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:18:29,059 INFO L87 Difference]: Start difference. First operand 49584 states and 81020 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 22:18:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:34,801 INFO L93 Difference]: Finished difference Result 137775 states and 222018 transitions. [2024-11-11 22:18:34,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:18:34,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 101 [2024-11-11 22:18:34,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:35,336 INFO L225 Difference]: With dead ends: 137775 [2024-11-11 22:18:35,337 INFO L226 Difference]: Without dead ends: 90326 [2024-11-11 22:18:35,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:18:35,442 INFO L435 NwaCegarLoop]: 4309 mSDtfsCounter, 4947 mSDsluCounter, 12534 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4978 SdHoareTripleChecker+Valid, 16843 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:35,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4978 Valid, 16843 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:18:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90326 states.