./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 c748b455b85e8e0d3f42bb7ec9994b8706853b8413212fc1d08f459460f9e58b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:23:00,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:23:00,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:23:00,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:23:00,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:23:00,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:23:00,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:23:00,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:23:00,442 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:23:00,442 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:23:00,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:23:00,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:23:00,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:23:00,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:23:00,444 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:23:00,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:23:00,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:23:00,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:23:00,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:23:00,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:23:00,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:23:00,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:23:00,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:23:00,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:23:00,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:23:00,449 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:23:00,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:23:00,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:23:00,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:23:00,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:23:00,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:23:00,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:23:00,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:23:00,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:23:00,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:23:00,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:23:00,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:23:00,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:23:00,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:23:00,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:23:00,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:23:00,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:23:00,454 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c748b455b85e8e0d3f42bb7ec9994b8706853b8413212fc1d08f459460f9e58b [2024-10-11 04:23:00,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:23:00,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:23:00,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:23:00,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:23:00,780 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:23:00,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c [2024-10-11 04:23:02,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:23:02,555 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:23:02,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c [2024-10-11 04:23:02,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/853af8209/a55bd2d87ea14074a4522ad43462e5be/FLAG6db23c3ac [2024-10-11 04:23:02,714 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/853af8209/a55bd2d87ea14074a4522ad43462e5be [2024-10-11 04:23:02,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:23:02,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:23:02,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:23:02,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:23:02,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:23:02,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:23:02" (1/1) ... [2024-10-11 04:23:02,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23cd92fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:02, skipping insertion in model container [2024-10-11 04:23:02,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:23:02" (1/1) ... [2024-10-11 04:23:02,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:23:03,977 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[382357,382370] [2024-10-11 04:23:04,004 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[383339,383352] [2024-10-11 04:23:04,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:23:04,226 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:23:04,895 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[382357,382370] [2024-10-11 04:23:04,899 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[383339,383352] [2024-10-11 04:23:04,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:23:04,964 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:23:04,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04 WrapperNode [2024-10-11 04:23:04,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:23:04,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:23:04,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:23:04,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:23:04,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:05,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:05,431 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13173 [2024-10-11 04:23:05,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:23:05,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:23:05,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:23:05,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:23:05,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:05,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:05,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:05,813 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 04:23:05,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:05,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:05,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:06,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:06,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:06,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:06,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:23:06,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:23:06,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:23:06,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:23:06,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (1/1) ... [2024-10-11 04:23:06,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:23:06,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:23:06,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:23:06,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:23:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:23:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 04:23:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 04:23:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 04:23:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 04:23:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 04:23:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 04:23:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 04:23:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 04:23:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 04:23:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 04:23:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 04:23:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 04:23:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:23:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:23:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:23:06,312 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:23:06,314 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:23:12,832 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-10-11 04:23:12,833 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:23:12,933 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:23:12,933 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-11 04:23:12,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:23:12 BoogieIcfgContainer [2024-10-11 04:23:12,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:23:12,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:23:12,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:23:12,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:23:12,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:23:02" (1/3) ... [2024-10-11 04:23:12,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50073fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:23:12, skipping insertion in model container [2024-10-11 04:23:12,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:04" (2/3) ... [2024-10-11 04:23:12,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50073fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:23:12, skipping insertion in model container [2024-10-11 04:23:12,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:23:12" (3/3) ... [2024-10-11 04:23:12,944 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.11.cil-2.c [2024-10-11 04:23:12,957 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:23:12,957 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:23:13,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:23:13,075 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;@34e9eae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:23:13,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:23:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 2448 states, 2414 states have (on average 1.876553438276719) internal successors, (4530), 2417 states have internal predecessors, (4530), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 04:23:13,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:13,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:13,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:13,109 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:13,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash -259596153, now seen corresponding path program 1 times [2024-10-11 04:23:13,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95213069] [2024-10-11 04:23:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:13,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:13,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:13,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:13,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:13,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:13,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:13,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95213069] [2024-10-11 04:23:13,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95213069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:13,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:13,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 04:23:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026142530] [2024-10-11 04:23:13,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:13,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 04:23:13,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:13,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 04:23:13,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 04:23:13,830 INFO L87 Difference]: Start difference. First operand has 2448 states, 2414 states have (on average 1.876553438276719) internal successors, (4530), 2417 states have internal predecessors, (4530), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:15,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:15,549 INFO L93 Difference]: Finished difference Result 5006 states and 9354 transitions. [2024-10-11 04:23:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:23:15,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:15,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:15,572 INFO L225 Difference]: With dead ends: 5006 [2024-10-11 04:23:15,573 INFO L226 Difference]: Without dead ends: 2564 [2024-10-11 04:23:15,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:23:15,583 INFO L432 NwaCegarLoop]: 4238 mSDtfsCounter, 902 mSDsluCounter, 12182 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 16420 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:15,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 16420 Invalid, 1046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 04:23:15,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-10-11 04:23:15,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2444. [2024-10-11 04:23:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 2411 states have (on average 1.838241393612609) internal successors, (4432), 2413 states have internal predecessors, (4432), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 04:23:15,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 4482 transitions. [2024-10-11 04:23:15,684 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 4482 transitions. Word has length 151 [2024-10-11 04:23:15,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:15,685 INFO L471 AbstractCegarLoop]: Abstraction has 2444 states and 4482 transitions. [2024-10-11 04:23:15,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:15,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 4482 transitions. [2024-10-11 04:23:15,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:15,688 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:15,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:15,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:23:15,689 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:15,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1876287049, now seen corresponding path program 1 times [2024-10-11 04:23:15,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:15,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18983082] [2024-10-11 04:23:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:15,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:15,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:15,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:16,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:16,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:16,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:16,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18983082] [2024-10-11 04:23:16,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18983082] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:16,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:16,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:23:16,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849017659] [2024-10-11 04:23:16,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:16,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:23:16,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:16,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:23:16,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:23:16,027 INFO L87 Difference]: Start difference. First operand 2444 states and 4482 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:18,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:18,510 INFO L93 Difference]: Finished difference Result 3313 states and 5934 transitions. [2024-10-11 04:23:18,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 04:23:18,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:18,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:18,520 INFO L225 Difference]: With dead ends: 3313 [2024-10-11 04:23:18,520 INFO L226 Difference]: Without dead ends: 3007 [2024-10-11 04:23:18,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:23:18,523 INFO L432 NwaCegarLoop]: 4252 mSDtfsCounter, 5325 mSDsluCounter, 12699 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5343 SdHoareTripleChecker+Valid, 16951 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:18,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5343 Valid, 16951 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 04:23:18,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2024-10-11 04:23:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2768. [2024-10-11 04:23:18,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 2708 states have (on average 1.8172082717872968) internal successors, (4921), 2711 states have internal predecessors, (4921), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-10-11 04:23:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 5014 transitions. [2024-10-11 04:23:18,600 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 5014 transitions. Word has length 151 [2024-10-11 04:23:18,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:18,602 INFO L471 AbstractCegarLoop]: Abstraction has 2768 states and 5014 transitions. [2024-10-11 04:23:18,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:18,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 5014 transitions. [2024-10-11 04:23:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:18,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:18,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:18,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:23:18,608 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:18,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:18,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1755061197, now seen corresponding path program 1 times [2024-10-11 04:23:18,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:18,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097093296] [2024-10-11 04:23:18,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:18,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:18,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:18,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:18,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:18,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:18,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:18,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:18,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097093296] [2024-10-11 04:23:18,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097093296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:18,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:18,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:18,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218709353] [2024-10-11 04:23:18,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:18,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:18,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:18,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:18,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:18,892 INFO L87 Difference]: Start difference. First operand 2768 states and 5014 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:22,076 INFO L93 Difference]: Finished difference Result 4098 states and 7236 transitions. [2024-10-11 04:23:22,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:23:22,078 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:22,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:22,089 INFO L225 Difference]: With dead ends: 4098 [2024-10-11 04:23:22,089 INFO L226 Difference]: Without dead ends: 3468 [2024-10-11 04:23:22,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:23:22,092 INFO L432 NwaCegarLoop]: 4390 mSDtfsCounter, 5356 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3461 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5374 SdHoareTripleChecker+Valid, 21646 SdHoareTripleChecker+Invalid, 3520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:22,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5374 Valid, 21646 Invalid, 3520 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [59 Valid, 3461 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 04:23:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2024-10-11 04:23:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3067. [2024-10-11 04:23:22,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 2980 states have (on average 1.7986577181208054) internal successors, (5360), 2984 states have internal predecessors, (5360), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-10-11 04:23:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 5495 transitions. [2024-10-11 04:23:22,173 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 5495 transitions. Word has length 151 [2024-10-11 04:23:22,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:22,173 INFO L471 AbstractCegarLoop]: Abstraction has 3067 states and 5495 transitions. [2024-10-11 04:23:22,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 5495 transitions. [2024-10-11 04:23:22,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:22,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:22,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:22,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:23:22,175 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:22,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:22,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1864745973, now seen corresponding path program 1 times [2024-10-11 04:23:22,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:22,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066202527] [2024-10-11 04:23:22,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:22,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:22,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:22,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:22,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:22,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:22,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:22,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066202527] [2024-10-11 04:23:22,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066202527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:22,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:22,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158897258] [2024-10-11 04:23:22,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:22,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:22,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:22,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:22,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:22,381 INFO L87 Difference]: Start difference. First operand 3067 states and 5495 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:25,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:25,739 INFO L93 Difference]: Finished difference Result 5248 states and 9131 transitions. [2024-10-11 04:23:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:23:25,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:25,758 INFO L225 Difference]: With dead ends: 5248 [2024-10-11 04:23:25,759 INFO L226 Difference]: Without dead ends: 4319 [2024-10-11 04:23:25,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:23:25,766 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5354 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3457 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5372 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:25,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5372 Valid, 21644 Invalid, 3518 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3457 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 04:23:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4319 states. [2024-10-11 04:23:25,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4319 to 3666. [2024-10-11 04:23:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7699290780141843) internal successors, (6239), 3531 states have internal predecessors, (6239), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 04:23:25,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6462 transitions. [2024-10-11 04:23:25,937 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6462 transitions. Word has length 151 [2024-10-11 04:23:25,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:25,938 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6462 transitions. [2024-10-11 04:23:25,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:25,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6462 transitions. [2024-10-11 04:23:25,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:25,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:25,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:25,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:23:25,940 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:25,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:25,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1482169357, now seen corresponding path program 1 times [2024-10-11 04:23:25,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:25,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323204906] [2024-10-11 04:23:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:25,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:26,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:26,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:26,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:26,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:26,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:26,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:26,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323204906] [2024-10-11 04:23:26,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323204906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:26,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:26,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:26,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705579359] [2024-10-11 04:23:26,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:26,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:26,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:26,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:26,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:26,271 INFO L87 Difference]: Start difference. First operand 3666 states and 6462 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:28,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:28,129 INFO L93 Difference]: Finished difference Result 5837 states and 10091 transitions. [2024-10-11 04:23:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:23:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:28,146 INFO L225 Difference]: With dead ends: 5837 [2024-10-11 04:23:28,146 INFO L226 Difference]: Without dead ends: 4309 [2024-10-11 04:23:28,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:23:28,154 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4957 mSDsluCounter, 16550 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 20742 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:28,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 20742 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 04:23:28,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4309 states. [2024-10-11 04:23:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4309 to 3666. [2024-10-11 04:23:28,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7685106382978724) internal successors, (6234), 3531 states have internal predecessors, (6234), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 04:23:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6457 transitions. [2024-10-11 04:23:28,446 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6457 transitions. Word has length 151 [2024-10-11 04:23:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:28,447 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6457 transitions. [2024-10-11 04:23:28,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:28,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6457 transitions. [2024-10-11 04:23:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:28,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:28,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:28,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:23:28,453 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:28,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:28,454 INFO L85 PathProgramCache]: Analyzing trace with hash 897397707, now seen corresponding path program 1 times [2024-10-11 04:23:28,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:28,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561761758] [2024-10-11 04:23:28,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:28,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:28,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:28,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:28,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:28,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:28,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:28,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:28,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561761758] [2024-10-11 04:23:28,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561761758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:28,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:28,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:28,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806409560] [2024-10-11 04:23:28,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:28,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:28,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:28,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:28,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:28,841 INFO L87 Difference]: Start difference. First operand 3666 states and 6457 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:30,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:30,204 INFO L93 Difference]: Finished difference Result 5831 states and 10065 transitions. [2024-10-11 04:23:30,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:23:30,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:30,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:30,219 INFO L225 Difference]: With dead ends: 5831 [2024-10-11 04:23:30,220 INFO L226 Difference]: Without dead ends: 4303 [2024-10-11 04:23:30,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:23:30,225 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 5096 mSDsluCounter, 12441 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 16633 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:30,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 16633 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 04:23:30,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2024-10-11 04:23:30,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 3666. [2024-10-11 04:23:30,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7670921985815602) internal successors, (6229), 3531 states have internal predecessors, (6229), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 04:23:30,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6452 transitions. [2024-10-11 04:23:30,331 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6452 transitions. Word has length 151 [2024-10-11 04:23:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:30,331 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6452 transitions. [2024-10-11 04:23:30,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6452 transitions. [2024-10-11 04:23:30,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:30,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:30,333 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:30,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:23:30,334 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:30,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:30,334 INFO L85 PathProgramCache]: Analyzing trace with hash 462892109, now seen corresponding path program 1 times [2024-10-11 04:23:30,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:30,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247043116] [2024-10-11 04:23:30,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:30,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:30,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:30,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:30,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:30,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:30,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:30,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:30,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247043116] [2024-10-11 04:23:30,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247043116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:30,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:30,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:30,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048750068] [2024-10-11 04:23:30,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:30,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:30,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:30,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:30,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:30,552 INFO L87 Difference]: Start difference. First operand 3666 states and 6452 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:32,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:32,034 INFO L93 Difference]: Finished difference Result 5824 states and 10037 transitions. [2024-10-11 04:23:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:23:32,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:32,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:32,045 INFO L225 Difference]: With dead ends: 5824 [2024-10-11 04:23:32,046 INFO L226 Difference]: Without dead ends: 4296 [2024-10-11 04:23:32,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:23:32,050 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 5100 mSDsluCounter, 12441 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5119 SdHoareTripleChecker+Valid, 16633 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:32,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5119 Valid, 16633 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 04:23:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2024-10-11 04:23:32,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 3666. [2024-10-11 04:23:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7656737588652482) internal successors, (6224), 3531 states have internal predecessors, (6224), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 04:23:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6447 transitions. [2024-10-11 04:23:32,156 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6447 transitions. Word has length 151 [2024-10-11 04:23:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:32,158 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6447 transitions. [2024-10-11 04:23:32,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:32,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6447 transitions. [2024-10-11 04:23:32,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:32,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:32,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:32,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:23:32,161 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:32,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:32,162 INFO L85 PathProgramCache]: Analyzing trace with hash 33233803, now seen corresponding path program 1 times [2024-10-11 04:23:32,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:32,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82346892] [2024-10-11 04:23:32,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:32,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:32,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:32,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:32,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:32,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:32,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:32,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:32,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82346892] [2024-10-11 04:23:32,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82346892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:32,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:32,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531799179] [2024-10-11 04:23:32,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:32,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:32,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:32,372 INFO L87 Difference]: Start difference. First operand 3666 states and 6447 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:33,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:33,735 INFO L93 Difference]: Finished difference Result 5812 states and 9999 transitions. [2024-10-11 04:23:33,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:23:33,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:33,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:33,747 INFO L225 Difference]: With dead ends: 5812 [2024-10-11 04:23:33,747 INFO L226 Difference]: Without dead ends: 4284 [2024-10-11 04:23:33,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:23:33,752 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 5096 mSDsluCounter, 12441 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 16633 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:33,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 16633 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 04:23:33,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2024-10-11 04:23:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 3666. [2024-10-11 04:23:33,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.764255319148936) internal successors, (6219), 3531 states have internal predecessors, (6219), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-11 04:23:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6442 transitions. [2024-10-11 04:23:33,850 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6442 transitions. Word has length 151 [2024-10-11 04:23:33,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:33,852 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6442 transitions. [2024-10-11 04:23:33,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6442 transitions. [2024-10-11 04:23:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:33,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:33,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:33,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:23:33,854 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:33,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:33,855 INFO L85 PathProgramCache]: Analyzing trace with hash 980271689, now seen corresponding path program 1 times [2024-10-11 04:23:33,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:33,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149215567] [2024-10-11 04:23:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:33,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:33,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:33,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:34,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:34,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:34,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:34,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:34,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149215567] [2024-10-11 04:23:34,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149215567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:34,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:34,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:34,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332717922] [2024-10-11 04:23:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:34,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:34,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:34,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:34,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:34,088 INFO L87 Difference]: Start difference. First operand 3666 states and 6442 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:37,400 INFO L93 Difference]: Finished difference Result 7418 states and 12588 transitions. [2024-10-11 04:23:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:23:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:37,415 INFO L225 Difference]: With dead ends: 7418 [2024-10-11 04:23:37,415 INFO L226 Difference]: Without dead ends: 5890 [2024-10-11 04:23:37,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:23:37,421 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5325 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5343 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:37,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5343 Valid, 21644 Invalid, 3388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3327 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 04:23:37,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5890 states. [2024-10-11 04:23:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5890 to 4887. [2024-10-11 04:23:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4887 states, 4638 states have (on average 1.7231565329883571) internal successors, (7992), 4648 states have internal predecessors, (7992), 185 states have call successors, (185), 54 states have call predecessors, (185), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-10-11 04:23:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4887 states to 4887 states and 8397 transitions. [2024-10-11 04:23:37,575 INFO L78 Accepts]: Start accepts. Automaton has 4887 states and 8397 transitions. Word has length 151 [2024-10-11 04:23:37,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:37,575 INFO L471 AbstractCegarLoop]: Abstraction has 4887 states and 8397 transitions. [2024-10-11 04:23:37,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4887 states and 8397 transitions. [2024-10-11 04:23:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:37,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:37,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:37,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:23:37,578 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:37,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:37,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1842105291, now seen corresponding path program 1 times [2024-10-11 04:23:37,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:37,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995115357] [2024-10-11 04:23:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:37,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:37,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:37,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:37,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:37,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:37,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:37,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:37,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995115357] [2024-10-11 04:23:37,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995115357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:37,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:37,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:37,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314128779] [2024-10-11 04:23:37,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:37,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:37,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:37,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:37,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:37,764 INFO L87 Difference]: Start difference. First operand 4887 states and 8397 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:41,036 INFO L93 Difference]: Finished difference Result 11823 states and 19739 transitions. [2024-10-11 04:23:41,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:23:41,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:41,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:41,070 INFO L225 Difference]: With dead ends: 11823 [2024-10-11 04:23:41,071 INFO L226 Difference]: Without dead ends: 9074 [2024-10-11 04:23:41,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:23:41,082 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5324 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3314 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5342 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:41,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5342 Valid, 21644 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3314 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 04:23:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9074 states. [2024-10-11 04:23:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9074 to 7326. [2024-10-11 04:23:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7326 states, 6861 states have (on average 1.6802215420492639) internal successors, (11528), 6879 states have internal predecessors, (11528), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-10-11 04:23:41,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7326 states to 7326 states and 12315 transitions. [2024-10-11 04:23:41,475 INFO L78 Accepts]: Start accepts. Automaton has 7326 states and 12315 transitions. Word has length 151 [2024-10-11 04:23:41,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:41,476 INFO L471 AbstractCegarLoop]: Abstraction has 7326 states and 12315 transitions. [2024-10-11 04:23:41,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:41,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7326 states and 12315 transitions. [2024-10-11 04:23:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:41,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:41,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:41,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:23:41,481 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:41,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash -208303607, now seen corresponding path program 1 times [2024-10-11 04:23:41,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:41,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986500913] [2024-10-11 04:23:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:41,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:41,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:41,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:41,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:41,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:41,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:41,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986500913] [2024-10-11 04:23:41,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986500913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:41,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:41,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:41,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810841734] [2024-10-11 04:23:41,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:41,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:41,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:41,695 INFO L87 Difference]: Start difference. First operand 7326 states and 12315 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:45,276 INFO L93 Difference]: Finished difference Result 20624 states and 34083 transitions. [2024-10-11 04:23:45,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:23:45,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:45,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:45,363 INFO L225 Difference]: With dead ends: 20624 [2024-10-11 04:23:45,363 INFO L226 Difference]: Without dead ends: 15436 [2024-10-11 04:23:45,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:23:45,399 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5323 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5341 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:45,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5341 Valid, 21644 Invalid, 3362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3301 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 04:23:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15436 states. [2024-10-11 04:23:46,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15436 to 12219. [2024-10-11 04:23:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12219 states, 11322 states have (on average 1.6447624094682918) internal successors, (18622), 11356 states have internal predecessors, (18622), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-11 04:23:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12219 states to 12219 states and 20227 transitions. [2024-10-11 04:23:46,521 INFO L78 Accepts]: Start accepts. Automaton has 12219 states and 20227 transitions. Word has length 151 [2024-10-11 04:23:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:46,522 INFO L471 AbstractCegarLoop]: Abstraction has 12219 states and 20227 transitions. [2024-10-11 04:23:46,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 12219 states and 20227 transitions. [2024-10-11 04:23:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:46,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:46,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:46,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:23:46,538 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:46,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:46,539 INFO L85 PathProgramCache]: Analyzing trace with hash 279743499, now seen corresponding path program 1 times [2024-10-11 04:23:46,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:46,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859053284] [2024-10-11 04:23:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:46,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:46,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:46,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:46,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:46,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:46,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859053284] [2024-10-11 04:23:46,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859053284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:46,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:46,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:46,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922705324] [2024-10-11 04:23:46,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:46,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:46,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:46,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:46,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:46,900 INFO L87 Difference]: Start difference. First operand 12219 states and 20227 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:49,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:49,246 INFO L93 Difference]: Finished difference Result 25682 states and 42532 transitions. [2024-10-11 04:23:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:23:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:49,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:49,296 INFO L225 Difference]: With dead ends: 25682 [2024-10-11 04:23:49,297 INFO L226 Difference]: Without dead ends: 15601 [2024-10-11 04:23:49,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:23:49,322 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4956 mSDsluCounter, 16550 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4975 SdHoareTripleChecker+Valid, 20742 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:49,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4975 Valid, 20742 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 04:23:49,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15601 states. [2024-10-11 04:23:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15601 to 12219. [2024-10-11 04:23:49,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12219 states, 11322 states have (on average 1.641847730083024) internal successors, (18589), 11356 states have internal predecessors, (18589), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-11 04:23:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12219 states to 12219 states and 20194 transitions. [2024-10-11 04:23:49,881 INFO L78 Accepts]: Start accepts. Automaton has 12219 states and 20194 transitions. Word has length 151 [2024-10-11 04:23:49,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:49,882 INFO L471 AbstractCegarLoop]: Abstraction has 12219 states and 20194 transitions. [2024-10-11 04:23:49,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 12219 states and 20194 transitions. [2024-10-11 04:23:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:49,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:49,888 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:49,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:23:49,889 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:49,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash -812891703, now seen corresponding path program 1 times [2024-10-11 04:23:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:49,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832972878] [2024-10-11 04:23:49,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:49,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:50,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:50,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:50,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:50,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:50,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:50,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832972878] [2024-10-11 04:23:50,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832972878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:50,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:50,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:50,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79002309] [2024-10-11 04:23:50,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:50,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:50,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:50,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:50,146 INFO L87 Difference]: Start difference. First operand 12219 states and 20194 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:54,446 INFO L93 Difference]: Finished difference Result 42673 states and 69999 transitions. [2024-10-11 04:23:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:23:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:23:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:54,545 INFO L225 Difference]: With dead ends: 42673 [2024-10-11 04:23:54,546 INFO L226 Difference]: Without dead ends: 32592 [2024-10-11 04:23:54,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:23:54,580 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 5714 mSDsluCounter, 17251 mSDsCounter, 0 mSdLazyCounter, 3253 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 21637 SdHoareTripleChecker+Invalid, 3317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:54,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5744 Valid, 21637 Invalid, 3317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3253 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 04:23:54,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32592 states. [2024-10-11 04:23:55,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32592 to 22005. [2024-10-11 04:23:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22005 states, 20276 states have (on average 1.617330834484119) internal successors, (32793), 20342 states have internal predecessors, (32793), 1273 states have call successors, (1273), 390 states have call predecessors, (1273), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-10-11 04:23:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22005 states to 22005 states and 36132 transitions. [2024-10-11 04:23:55,826 INFO L78 Accepts]: Start accepts. Automaton has 22005 states and 36132 transitions. Word has length 151 [2024-10-11 04:23:55,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:55,827 INFO L471 AbstractCegarLoop]: Abstraction has 22005 states and 36132 transitions. [2024-10-11 04:23:55,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:23:55,827 INFO L276 IsEmpty]: Start isEmpty. Operand 22005 states and 36132 transitions. [2024-10-11 04:23:55,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:23:55,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:55,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:23:55,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:23:55,837 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:55,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2095063989, now seen corresponding path program 1 times [2024-10-11 04:23:55,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:55,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711247967] [2024-10-11 04:23:55,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:55,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:55,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:55,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:23:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:55,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:23:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:56,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:23:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:56,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:23:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:56,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:56,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711247967] [2024-10-11 04:23:56,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711247967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:56,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:56,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:56,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937461830] [2024-10-11 04:23:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:56,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:56,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:56,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:56,020 INFO L87 Difference]: Start difference. First operand 22005 states and 36132 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:02,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:02,481 INFO L93 Difference]: Finished difference Result 81465 states and 133999 transitions. [2024-10-11 04:24:02,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:24:02,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:24:02,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:02,770 INFO L225 Difference]: With dead ends: 81465 [2024-10-11 04:24:02,770 INFO L226 Difference]: Without dead ends: 61598 [2024-10-11 04:24:02,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:24:02,827 INFO L432 NwaCegarLoop]: 4385 mSDtfsCounter, 5411 mSDsluCounter, 17248 mSDsCounter, 0 mSdLazyCounter, 3855 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5428 SdHoareTripleChecker+Valid, 21633 SdHoareTripleChecker+Invalid, 3918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:02,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5428 Valid, 21633 Invalid, 3918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3855 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 04:24:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61598 states. [2024-10-11 04:24:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61598 to 41254. [2024-10-11 04:24:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41254 states, 37893 states have (on average 1.603119309635025) internal successors, (60747), 38023 states have internal predecessors, (60747), 2457 states have call successors, (2457), 774 states have call predecessors, (2457), 902 states have return successors, (4772), 2584 states have call predecessors, (4772), 2457 states have call successors, (4772) [2024-10-11 04:24:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41254 states to 41254 states and 67976 transitions. [2024-10-11 04:24:05,579 INFO L78 Accepts]: Start accepts. Automaton has 41254 states and 67976 transitions. Word has length 151 [2024-10-11 04:24:05,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:05,579 INFO L471 AbstractCegarLoop]: Abstraction has 41254 states and 67976 transitions. [2024-10-11 04:24:05,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 41254 states and 67976 transitions. [2024-10-11 04:24:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:24:05,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:05,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:05,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:24:05,598 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:05,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:05,598 INFO L85 PathProgramCache]: Analyzing trace with hash 357427593, now seen corresponding path program 1 times [2024-10-11 04:24:05,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:05,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218880380] [2024-10-11 04:24:05,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:05,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:05,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:24:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:05,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:24:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:05,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:24:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:05,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:24:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:05,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:05,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218880380] [2024-10-11 04:24:05,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218880380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:05,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:05,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:05,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19899312] [2024-10-11 04:24:05,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:05,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:05,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:05,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:05,776 INFO L87 Difference]: Start difference. First operand 41254 states and 67976 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:16,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:16,671 INFO L93 Difference]: Finished difference Result 155526 states and 258177 transitions. [2024-10-11 04:24:16,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:24:16,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-10-11 04:24:16,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:17,274 INFO L225 Difference]: With dead ends: 155526 [2024-10-11 04:24:17,275 INFO L226 Difference]: Without dead ends: 116410 [2024-10-11 04:24:17,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:24:17,363 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 5609 mSDsluCounter, 17251 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5639 SdHoareTripleChecker+Valid, 21637 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:17,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5639 Valid, 21637 Invalid, 3272 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 04:24:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116410 states. [2024-10-11 04:24:22,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116410 to 80200. [2024-10-11 04:24:23,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80200 states, 73639 states have (on average 1.5963144529393392) internal successors, (117551), 73897 states have internal predecessors, (117551), 4761 states have call successors, (4761), 1542 states have call predecessors, (4761), 1798 states have return successors, (11578), 5016 states have call predecessors, (11578), 4761 states have call successors, (11578) [2024-10-11 04:24:23,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80200 states to 80200 states and 133890 transitions. [2024-10-11 04:24:23,277 INFO L78 Accepts]: Start accepts. Automaton has 80200 states and 133890 transitions. Word has length 151 [2024-10-11 04:24:23,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:23,277 INFO L471 AbstractCegarLoop]: Abstraction has 80200 states and 133890 transitions. [2024-10-11 04:24:23,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:23,278 INFO L276 IsEmpty]: Start isEmpty. Operand 80200 states and 133890 transitions. [2024-10-11 04:24:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 04:24:23,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:23,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:23,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 04:24:23,319 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:23,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:23,319 INFO L85 PathProgramCache]: Analyzing trace with hash 24784455, now seen corresponding path program 1 times [2024-10-11 04:24:23,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:23,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855022759] [2024-10-11 04:24:23,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:23,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:23,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:23,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 04:24:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:23,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 04:24:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:23,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 04:24:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:23,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 04:24:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:23,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:23,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855022759] [2024-10-11 04:24:23,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855022759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:23,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:23,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:23,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834458263] [2024-10-11 04:24:23,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:23,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:23,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:23,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:23,490 INFO L87 Difference]: Start difference. First operand 80200 states and 133890 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)