./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_label40+token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.07.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef314c292717d2a6588e316ab1f60892c9568f1799857e58c021646ee7eb2cde --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:10:06,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:10:06,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:10:06,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:10:06,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:10:07,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:10:07,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:10:07,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:10:07,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:10:07,019 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:10:07,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:10:07,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:10:07,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:10:07,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:10:07,023 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:10:07,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:10:07,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:10:07,023 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:10:07,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:10:07,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:10:07,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:10:07,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:10:07,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:10:07,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:10:07,026 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:10:07,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:10:07,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:10:07,027 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:10:07,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:10:07,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:10:07,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:10:07,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:10:07,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:10:07,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:10:07,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:10:07,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:10:07,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:10:07,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:10:07,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:10:07,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:10:07,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:10:07,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:10:07,030 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef314c292717d2a6588e316ab1f60892c9568f1799857e58c021646ee7eb2cde [2024-10-24 02:10:07,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:10:07,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:10:07,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:10:07,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:10:07,332 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:10:07,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.07.cil-1.c [2024-10-24 02:10:08,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:10:09,276 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:10:09,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.07.cil-1.c [2024-10-24 02:10:09,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9272ec6d0/3f05d21f89874ebbaee497ffceef4a50/FLAG54b94d061 [2024-10-24 02:10:09,349 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9272ec6d0/3f05d21f89874ebbaee497ffceef4a50 [2024-10-24 02:10:09,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:10:09,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:10:09,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:10:09,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:10:09,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:10:09,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:10:09" (1/1) ... [2024-10-24 02:10:09,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4546cfd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:09, skipping insertion in model container [2024-10-24 02:10:09,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:10:09" (1/1) ... [2024-10-24 02:10:09,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:10:10,988 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_label40+token_ring.07.cil-1.c[377069,377082] [2024-10-24 02:10:11,017 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_label40+token_ring.07.cil-1.c[383339,383352] [2024-10-24 02:10:11,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:10:11,206 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:10:11,886 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_label40+token_ring.07.cil-1.c[377069,377082] [2024-10-24 02:10:11,893 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_label40+token_ring.07.cil-1.c[383339,383352] [2024-10-24 02:10:11,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:10:11,956 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:10:11,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11 WrapperNode [2024-10-24 02:10:11,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:10:11,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:10:11,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:10:11,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:10:11,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,453 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12933 [2024-10-24 02:10:12,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:10:12,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:10:12,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:10:12,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:10:12,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,594 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 02:10:12,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:10:12,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:10:12,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:10:12,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:10:12,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (1/1) ... [2024-10-24 02:10:12,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:10:12,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:10:13,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 02:10:13,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 02:10:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:10:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:10:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:10:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:10:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:10:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:10:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:10:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:10:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:10:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:10:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:10:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:10:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:10:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:10:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:10:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:10:13,200 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:10:13,203 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:10:20,448 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-10-24 02:10:20,449 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:10:20,582 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:10:20,583 INFO L314 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-24 02:10:20,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:10:20 BoogieIcfgContainer [2024-10-24 02:10:20,584 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:10:20,586 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:10:20,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:10:20,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:10:20,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:10:09" (1/3) ... [2024-10-24 02:10:20,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17602881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:10:20, skipping insertion in model container [2024-10-24 02:10:20,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:11" (2/3) ... [2024-10-24 02:10:20,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17602881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:10:20, skipping insertion in model container [2024-10-24 02:10:20,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:10:20" (3/3) ... [2024-10-24 02:10:20,595 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.07.cil-1.c [2024-10-24 02:10:20,616 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:10:20,617 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:10:20,772 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:10:20,780 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;@507f9266, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:10:20,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:10:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 2356 states, 2326 states have (on average 1.880481513327601) internal successors, (4374), 2329 states have internal predecessors, (4374), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 02:10:20,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:20,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:20,823 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] [2024-10-24 02:10:20,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:20,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash -777767020, now seen corresponding path program 1 times [2024-10-24 02:10:20,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455922439] [2024-10-24 02:10:20,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:20,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:21,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:21,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:21,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:21,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:21,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:21,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455922439] [2024-10-24 02:10:21,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455922439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:21,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:21,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:10:21,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799220268] [2024-10-24 02:10:21,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:21,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:10:21,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:21,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:10:21,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:10:21,320 INFO L87 Difference]: Start difference. First operand has 2356 states, 2326 states have (on average 1.880481513327601) internal successors, (4374), 2329 states have internal predecessors, (4374), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:22,382 INFO L93 Difference]: Finished difference Result 4782 states and 8954 transitions. [2024-10-24 02:10:22,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:10:22,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:22,406 INFO L225 Difference]: With dead ends: 4782 [2024-10-24 02:10:22,407 INFO L226 Difference]: Without dead ends: 2432 [2024-10-24 02:10:22,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:10:22,420 INFO L432 NwaCegarLoop]: 4162 mSDtfsCounter, 618 mSDsluCounter, 12094 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 16256 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:22,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 16256 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:10:22,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-10-24 02:10:22,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2352. [2024-10-24 02:10:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2323 states have (on average 1.8441670253981919) internal successors, (4284), 2325 states have internal predecessors, (4284), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 02:10:22,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 4326 transitions. [2024-10-24 02:10:22,534 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 4326 transitions. Word has length 111 [2024-10-24 02:10:22,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:22,534 INFO L471 AbstractCegarLoop]: Abstraction has 2352 states and 4326 transitions. [2024-10-24 02:10:22,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:22,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 4326 transitions. [2024-10-24 02:10:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:22,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:22,539 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] [2024-10-24 02:10:22,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:10:22,539 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:22,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1128636246, now seen corresponding path program 1 times [2024-10-24 02:10:22,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:22,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643255730] [2024-10-24 02:10:22,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:22,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:22,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:22,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:22,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:22,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:23,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:23,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:23,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:23,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643255730] [2024-10-24 02:10:23,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643255730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:23,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:23,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:10:23,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891873278] [2024-10-24 02:10:23,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:23,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:10:23,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:23,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:10:23,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:10:23,020 INFO L87 Difference]: Start difference. First operand 2352 states and 4326 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:24,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:24,716 INFO L93 Difference]: Finished difference Result 2957 states and 5322 transitions. [2024-10-24 02:10:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:10:24,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:24,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:24,729 INFO L225 Difference]: With dead ends: 2957 [2024-10-24 02:10:24,729 INFO L226 Difference]: Without dead ends: 2739 [2024-10-24 02:10:24,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:10:24,733 INFO L432 NwaCegarLoop]: 4137 mSDtfsCounter, 4889 mSDsluCounter, 12392 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 16529 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:24,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4903 Valid, 16529 Invalid, 1541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:10:24,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2024-10-24 02:10:24,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2580. [2024-10-24 02:10:24,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2528 states have (on average 1.8263449367088607) internal successors, (4617), 2531 states have internal predecessors, (4617), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-10-24 02:10:24,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 4694 transitions. [2024-10-24 02:10:24,815 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 4694 transitions. Word has length 111 [2024-10-24 02:10:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:24,816 INFO L471 AbstractCegarLoop]: Abstraction has 2580 states and 4694 transitions. [2024-10-24 02:10:24,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 4694 transitions. [2024-10-24 02:10:24,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:24,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:24,823 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] [2024-10-24 02:10:24,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:10:24,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:24,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:24,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1887332390, now seen corresponding path program 1 times [2024-10-24 02:10:24,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:24,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435521866] [2024-10-24 02:10:24,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:24,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:24,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:25,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:25,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:25,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:25,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:25,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:25,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435521866] [2024-10-24 02:10:25,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435521866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:25,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:25,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:25,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201971811] [2024-10-24 02:10:25,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:25,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:25,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:25,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:25,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:25,088 INFO L87 Difference]: Start difference. First operand 2580 states and 4694 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:27,639 INFO L93 Difference]: Finished difference Result 3502 states and 6208 transitions. [2024-10-24 02:10:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:10:27,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:27,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:27,654 INFO L225 Difference]: With dead ends: 3502 [2024-10-24 02:10:27,654 INFO L226 Difference]: Without dead ends: 3056 [2024-10-24 02:10:27,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:10:27,660 INFO L432 NwaCegarLoop]: 4270 mSDtfsCounter, 4904 mSDsluCounter, 16836 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:27,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 21106 Invalid, 2424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 02:10:27,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2024-10-24 02:10:27,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2791. [2024-10-24 02:10:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2716 states have (on average 1.8100147275405007) internal successors, (4916), 2720 states have internal predecessors, (4916), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-10-24 02:10:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 5027 transitions. [2024-10-24 02:10:27,788 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 5027 transitions. Word has length 111 [2024-10-24 02:10:27,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:27,789 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 5027 transitions. [2024-10-24 02:10:27,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:27,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 5027 transitions. [2024-10-24 02:10:27,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:27,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:27,792 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] [2024-10-24 02:10:27,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:10:27,792 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:27,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:27,793 INFO L85 PathProgramCache]: Analyzing trace with hash 788659992, now seen corresponding path program 1 times [2024-10-24 02:10:27,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:27,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703904913] [2024-10-24 02:10:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:27,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:27,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:27,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:28,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:28,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:28,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703904913] [2024-10-24 02:10:28,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703904913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:28,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:28,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:28,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607314286] [2024-10-24 02:10:28,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:28,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:28,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:28,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:28,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:28,149 INFO L87 Difference]: Start difference. First operand 2791 states and 5027 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:30,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:30,293 INFO L93 Difference]: Finished difference Result 4300 states and 7499 transitions. [2024-10-24 02:10:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:10:30,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:30,307 INFO L225 Difference]: With dead ends: 4300 [2024-10-24 02:10:30,308 INFO L226 Difference]: Without dead ends: 3643 [2024-10-24 02:10:30,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:10:30,312 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 4902 mSDsluCounter, 16836 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 21104 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:30,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 21104 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:10:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2024-10-24 02:10:30,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3214. [2024-10-24 02:10:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7830585192369868) internal successors, (5515), 3099 states have internal predecessors, (5515), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:10:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5698 transitions. [2024-10-24 02:10:30,412 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5698 transitions. Word has length 111 [2024-10-24 02:10:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:30,412 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5698 transitions. [2024-10-24 02:10:30,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5698 transitions. [2024-10-24 02:10:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:30,415 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:30,415 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] [2024-10-24 02:10:30,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:10:30,416 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:30,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash -94848998, now seen corresponding path program 1 times [2024-10-24 02:10:30,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:30,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068850659] [2024-10-24 02:10:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:30,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:30,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:30,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:30,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:30,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:30,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:30,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:30,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068850659] [2024-10-24 02:10:30,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068850659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:30,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:30,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:30,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298842939] [2024-10-24 02:10:30,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:30,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:30,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:30,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:30,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:30,604 INFO L87 Difference]: Start difference. First operand 3214 states and 5698 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:31,687 INFO L93 Difference]: Finished difference Result 4713 states and 8163 transitions. [2024-10-24 02:10:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:10:31,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:31,698 INFO L225 Difference]: With dead ends: 4713 [2024-10-24 02:10:31,698 INFO L226 Difference]: Without dead ends: 3633 [2024-10-24 02:10:31,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:10:31,701 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4645 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4660 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:31,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4660 Valid, 20458 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:10:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2024-10-24 02:10:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3214. [2024-10-24 02:10:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7814419657290657) internal successors, (5510), 3099 states have internal predecessors, (5510), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:10:31,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5693 transitions. [2024-10-24 02:10:31,773 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5693 transitions. Word has length 111 [2024-10-24 02:10:31,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:31,773 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5693 transitions. [2024-10-24 02:10:31,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:31,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5693 transitions. [2024-10-24 02:10:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:31,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:31,775 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] [2024-10-24 02:10:31,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:10:31,775 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:31,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:31,776 INFO L85 PathProgramCache]: Analyzing trace with hash -123349288, now seen corresponding path program 1 times [2024-10-24 02:10:31,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:31,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777477093] [2024-10-24 02:10:31,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:31,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:31,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:31,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:31,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:31,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:31,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:31,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:31,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777477093] [2024-10-24 02:10:31,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777477093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:31,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:31,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:31,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68464218] [2024-10-24 02:10:31,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:31,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:31,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:31,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:31,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:31,961 INFO L87 Difference]: Start difference. First operand 3214 states and 5693 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:32,944 INFO L93 Difference]: Finished difference Result 4707 states and 8137 transitions. [2024-10-24 02:10:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:10:32,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:32,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:32,955 INFO L225 Difference]: With dead ends: 4707 [2024-10-24 02:10:32,956 INFO L226 Difference]: Without dead ends: 3627 [2024-10-24 02:10:32,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:10:32,959 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4740 mSDsluCounter, 12269 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4755 SdHoareTripleChecker+Valid, 16393 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:32,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4755 Valid, 16393 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:10:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2024-10-24 02:10:33,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3214. [2024-10-24 02:10:33,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7798254122211445) internal successors, (5505), 3099 states have internal predecessors, (5505), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:10:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5688 transitions. [2024-10-24 02:10:33,038 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5688 transitions. Word has length 111 [2024-10-24 02:10:33,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:33,039 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5688 transitions. [2024-10-24 02:10:33,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5688 transitions. [2024-10-24 02:10:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:33,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:33,041 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] [2024-10-24 02:10:33,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:10:33,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:33,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash -2063931302, now seen corresponding path program 1 times [2024-10-24 02:10:33,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:33,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224725491] [2024-10-24 02:10:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:33,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:33,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:33,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:33,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:33,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:33,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:33,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224725491] [2024-10-24 02:10:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224725491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:33,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:33,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:33,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643400850] [2024-10-24 02:10:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:33,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:33,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:33,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:33,173 INFO L87 Difference]: Start difference. First operand 3214 states and 5688 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:34,107 INFO L93 Difference]: Finished difference Result 4700 states and 8109 transitions. [2024-10-24 02:10:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:10:34,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:34,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:34,128 INFO L225 Difference]: With dead ends: 4700 [2024-10-24 02:10:34,128 INFO L226 Difference]: Without dead ends: 3620 [2024-10-24 02:10:34,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:10:34,134 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4646 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4661 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:34,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4661 Valid, 20458 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:10:34,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2024-10-24 02:10:34,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 3214. [2024-10-24 02:10:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7782088587132234) internal successors, (5500), 3099 states have internal predecessors, (5500), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:10:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5683 transitions. [2024-10-24 02:10:34,251 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5683 transitions. Word has length 111 [2024-10-24 02:10:34,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:34,251 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5683 transitions. [2024-10-24 02:10:34,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:34,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5683 transitions. [2024-10-24 02:10:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:34,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:34,253 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] [2024-10-24 02:10:34,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:10:34,254 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:34,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -186868072, now seen corresponding path program 1 times [2024-10-24 02:10:34,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:34,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660863229] [2024-10-24 02:10:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:34,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:34,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:34,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:34,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:34,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:34,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:34,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660863229] [2024-10-24 02:10:34,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660863229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:34,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:34,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:34,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460722571] [2024-10-24 02:10:34,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:34,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:34,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:34,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:34,403 INFO L87 Difference]: Start difference. First operand 3214 states and 5683 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:35,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:35,421 INFO L93 Difference]: Finished difference Result 4688 states and 8071 transitions. [2024-10-24 02:10:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:10:35,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:35,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:35,439 INFO L225 Difference]: With dead ends: 4688 [2024-10-24 02:10:35,443 INFO L226 Difference]: Without dead ends: 3608 [2024-10-24 02:10:35,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:10:35,447 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4643 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:35,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 20458 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:10:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2024-10-24 02:10:35,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3214. [2024-10-24 02:10:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7765923052053023) internal successors, (5495), 3099 states have internal predecessors, (5495), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:10:35,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5678 transitions. [2024-10-24 02:10:35,609 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5678 transitions. Word has length 111 [2024-10-24 02:10:35,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:35,609 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5678 transitions. [2024-10-24 02:10:35,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:35,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5678 transitions. [2024-10-24 02:10:35,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:35,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:35,610 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] [2024-10-24 02:10:35,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:10:35,611 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:35,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:35,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1181561770, now seen corresponding path program 1 times [2024-10-24 02:10:35,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:35,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749175148] [2024-10-24 02:10:35,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:35,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:35,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:35,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:35,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:35,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:35,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:35,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:35,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749175148] [2024-10-24 02:10:35,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749175148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:35,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:35,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:35,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523444057] [2024-10-24 02:10:35,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:35,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:35,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:35,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:35,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:35,760 INFO L87 Difference]: Start difference. First operand 3214 states and 5678 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:37,910 INFO L93 Difference]: Finished difference Result 6166 states and 10402 transitions. [2024-10-24 02:10:37,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:10:37,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:37,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:37,923 INFO L225 Difference]: With dead ends: 6166 [2024-10-24 02:10:37,923 INFO L226 Difference]: Without dead ends: 5086 [2024-10-24 02:10:37,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:10:37,928 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 5132 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:37,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 21097 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:10:37,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2024-10-24 02:10:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 4075. [2024-10-24 02:10:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3866 states have (on average 1.734092084842214) internal successors, (6704), 3876 states have internal predecessors, (6704), 145 states have call successors, (145), 54 states have call predecessors, (145), 62 states have return successors, (180), 152 states have call predecessors, (180), 145 states have call successors, (180) [2024-10-24 02:10:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7029 transitions. [2024-10-24 02:10:38,060 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7029 transitions. Word has length 111 [2024-10-24 02:10:38,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:38,060 INFO L471 AbstractCegarLoop]: Abstraction has 4075 states and 7029 transitions. [2024-10-24 02:10:38,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:38,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7029 transitions. [2024-10-24 02:10:38,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:38,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:38,063 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] [2024-10-24 02:10:38,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:10:38,063 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:38,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1767837992, now seen corresponding path program 1 times [2024-10-24 02:10:38,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:38,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313712912] [2024-10-24 02:10:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:38,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:38,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:38,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:38,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:38,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:38,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:38,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:38,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:38,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313712912] [2024-10-24 02:10:38,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313712912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:38,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:38,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236531108] [2024-10-24 02:10:38,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:38,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:38,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:38,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:38,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:38,215 INFO L87 Difference]: Start difference. First operand 4075 states and 7029 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:40,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:40,835 INFO L93 Difference]: Finished difference Result 9483 states and 15673 transitions. [2024-10-24 02:10:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:10:40,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:40,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:40,855 INFO L225 Difference]: With dead ends: 9483 [2024-10-24 02:10:40,855 INFO L226 Difference]: Without dead ends: 7542 [2024-10-24 02:10:40,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:10:40,862 INFO L432 NwaCegarLoop]: 4265 mSDtfsCounter, 4927 mSDsluCounter, 16828 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 21093 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:40,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4940 Valid, 21093 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 02:10:40,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7542 states. [2024-10-24 02:10:41,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7542 to 5746. [2024-10-24 02:10:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5365 states have (on average 1.6857409133271202) internal successors, (9044), 5383 states have internal predecessors, (9044), 261 states have call successors, (261), 102 states have call predecessors, (261), 118 states have return successors, (358), 276 states have call predecessors, (358), 261 states have call successors, (358) [2024-10-24 02:10:41,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 9663 transitions. [2024-10-24 02:10:41,197 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 9663 transitions. Word has length 111 [2024-10-24 02:10:41,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:41,197 INFO L471 AbstractCegarLoop]: Abstraction has 5746 states and 9663 transitions. [2024-10-24 02:10:41,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 9663 transitions. [2024-10-24 02:10:41,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:41,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:41,201 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] [2024-10-24 02:10:41,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:10:41,202 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:41,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:41,203 INFO L85 PathProgramCache]: Analyzing trace with hash 568554518, now seen corresponding path program 1 times [2024-10-24 02:10:41,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:41,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689118208] [2024-10-24 02:10:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:41,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:41,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:41,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:41,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:41,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:41,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:41,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:41,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689118208] [2024-10-24 02:10:41,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689118208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:41,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:41,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:41,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986959109] [2024-10-24 02:10:41,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:41,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:41,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:41,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:41,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:41,369 INFO L87 Difference]: Start difference. First operand 5746 states and 9663 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:44,114 INFO L93 Difference]: Finished difference Result 15876 states and 25869 transitions. [2024-10-24 02:10:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:10:44,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:44,173 INFO L225 Difference]: With dead ends: 15876 [2024-10-24 02:10:44,173 INFO L226 Difference]: Without dead ends: 12264 [2024-10-24 02:10:44,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:10:44,195 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 5060 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5082 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:44,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5082 Valid, 21097 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 02:10:44,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12264 states. [2024-10-24 02:10:44,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12264 to 9127. [2024-10-24 02:10:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9127 states, 8410 states have (on average 1.641141498216409) internal successors, (13802), 8444 states have internal predecessors, (13802), 485 states have call successors, (485), 198 states have call predecessors, (485), 230 states have return successors, (760), 516 states have call predecessors, (760), 485 states have call successors, (760) [2024-10-24 02:10:44,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9127 states to 9127 states and 15047 transitions. [2024-10-24 02:10:44,609 INFO L78 Accepts]: Start accepts. Automaton has 9127 states and 15047 transitions. Word has length 111 [2024-10-24 02:10:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:44,609 INFO L471 AbstractCegarLoop]: Abstraction has 9127 states and 15047 transitions. [2024-10-24 02:10:44,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 9127 states and 15047 transitions. [2024-10-24 02:10:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:44,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:44,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:10:44,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:10:44,615 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:44,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1849929960, now seen corresponding path program 1 times [2024-10-24 02:10:44,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:44,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727905921] [2024-10-24 02:10:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:44,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:44,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:44,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:44,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:44,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:44,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:44,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727905921] [2024-10-24 02:10:44,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727905921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:44,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:44,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634587682] [2024-10-24 02:10:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:44,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:44,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:44,757 INFO L87 Difference]: Start difference. First operand 9127 states and 15047 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:47,491 INFO L93 Difference]: Finished difference Result 28527 states and 46239 transitions. [2024-10-24 02:10:47,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:10:47,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:47,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:47,547 INFO L225 Difference]: With dead ends: 28527 [2024-10-24 02:10:47,547 INFO L226 Difference]: Without dead ends: 21534 [2024-10-24 02:10:47,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:10:47,569 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 5024 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:47,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 21097 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:10:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21534 states. [2024-10-24 02:10:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21534 to 15888. [2024-10-24 02:10:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15888 states, 14515 states have (on average 1.608542886668963) internal successors, (23348), 14581 states have internal predecessors, (23348), 917 states have call successors, (917), 390 states have call predecessors, (917), 454 states have return successors, (1710), 980 states have call predecessors, (1710), 917 states have call successors, (1710) [2024-10-24 02:10:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15888 states to 15888 states and 25975 transitions. [2024-10-24 02:10:48,367 INFO L78 Accepts]: Start accepts. Automaton has 15888 states and 25975 transitions. Word has length 111 [2024-10-24 02:10:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:48,368 INFO L471 AbstractCegarLoop]: Abstraction has 15888 states and 25975 transitions. [2024-10-24 02:10:48,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 15888 states and 25975 transitions. [2024-10-24 02:10:48,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:48,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:48,377 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] [2024-10-24 02:10:48,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:10:48,377 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:48,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash 565906390, now seen corresponding path program 1 times [2024-10-24 02:10:48,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:48,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210499611] [2024-10-24 02:10:48,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:48,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:48,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:48,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:48,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:48,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:48,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:48,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:48,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210499611] [2024-10-24 02:10:48,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210499611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:48,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:48,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:48,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000118989] [2024-10-24 02:10:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:48,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:48,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:48,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:48,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:48,527 INFO L87 Difference]: Start difference. First operand 15888 states and 25975 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:52,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:52,685 INFO L93 Difference]: Finished difference Result 53350 states and 86797 transitions. [2024-10-24 02:10:52,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:10:52,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:10:52,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:52,778 INFO L225 Difference]: With dead ends: 53350 [2024-10-24 02:10:52,778 INFO L226 Difference]: Without dead ends: 39596 [2024-10-24 02:10:52,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:10:52,815 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4898 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:52,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4911 Valid, 21097 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:10:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39596 states. [2024-10-24 02:10:55,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39596 to 29409. [2024-10-24 02:10:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29409 states, 26756 states have (on average 1.5885035132306773) internal successors, (42502), 26886 states have internal predecessors, (42502), 1749 states have call successors, (1749), 774 states have call predecessors, (1749), 902 states have return successors, (4064), 1876 states have call predecessors, (4064), 1749 states have call successors, (4064) [2024-10-24 02:10:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29409 states to 29409 states and 48315 transitions. [2024-10-24 02:10:55,233 INFO L78 Accepts]: Start accepts. Automaton has 29409 states and 48315 transitions. Word has length 111 [2024-10-24 02:10:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:55,234 INFO L471 AbstractCegarLoop]: Abstraction has 29409 states and 48315 transitions. [2024-10-24 02:10:55,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:10:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 29409 states and 48315 transitions. [2024-10-24 02:10:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:10:55,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:55,250 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] [2024-10-24 02:10:55,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:10:55,250 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:55,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1890762584, now seen corresponding path program 1 times [2024-10-24 02:10:55,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:55,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269042945] [2024-10-24 02:10:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:55,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:10:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:10:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:10:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:10:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:55,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:55,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269042945] [2024-10-24 02:10:55,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269042945] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:55,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:55,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:55,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45023710] [2024-10-24 02:10:55,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:55,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:55,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:55,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:55,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:55,420 INFO L87 Difference]: Start difference. First operand 29409 states and 48315 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:01,928 INFO L93 Difference]: Finished difference Result 102037 states and 168195 transitions. [2024-10-24 02:11:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:01,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:11:01,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:02,101 INFO L225 Difference]: With dead ends: 102037 [2024-10-24 02:11:02,101 INFO L226 Difference]: Without dead ends: 74762 [2024-10-24 02:11:02,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:02,159 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4958 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4980 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:02,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4980 Valid, 21097 Invalid, 2215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:11:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74762 states. [2024-10-24 02:11:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74762 to 56450. [2024-10-24 02:11:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56450 states, 51301 states have (on average 1.57766905128555) internal successors, (80936), 51559 states have internal predecessors, (80936), 3349 states have call successors, (3349), 1542 states have call predecessors, (3349), 1798 states have return successors, (10166), 3604 states have call predecessors, (10166), 3349 states have call successors, (10166) [2024-10-24 02:11:06,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56450 states to 56450 states and 94451 transitions. [2024-10-24 02:11:06,808 INFO L78 Accepts]: Start accepts. Automaton has 56450 states and 94451 transitions. Word has length 111 [2024-10-24 02:11:06,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:06,812 INFO L471 AbstractCegarLoop]: Abstraction has 56450 states and 94451 transitions. [2024-10-24 02:11:06,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 56450 states and 94451 transitions. [2024-10-24 02:11:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:11:06,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:06,892 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] [2024-10-24 02:11:06,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:11:06,893 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:06,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash -837446762, now seen corresponding path program 1 times [2024-10-24 02:11:06,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:06,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559679682] [2024-10-24 02:11:06,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:06,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:06,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:07,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:11:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:11:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:07,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:11:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:07,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:11:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:07,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:07,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559679682] [2024-10-24 02:11:07,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559679682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:07,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:07,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:07,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165846539] [2024-10-24 02:11:07,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:07,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:07,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:07,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:07,136 INFO L87 Difference]: Start difference. First operand 56450 states and 94451 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:18,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:18,603 INFO L93 Difference]: Finished difference Result 194162 states and 328373 transitions. [2024-10-24 02:11:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:18,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2024-10-24 02:11:18,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:19,296 INFO L225 Difference]: With dead ends: 194162 [2024-10-24 02:11:19,296 INFO L226 Difference]: Without dead ends: 139846 [2024-10-24 02:11:19,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:19,422 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4880 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:19,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4902 Valid, 21097 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:11:19,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139846 states.