./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.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_label46+token_ring.05.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ee0afe9c2a2e5e350a29156a4a7c18a224cec42ab7ff37fc9f10d35d9e173ae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:21:11,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:21:11,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:21:11,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:21:11,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:21:11,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:21:11,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:21:11,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:21:11,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:21:11,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:21:11,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:21:11,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:21:11,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:21:11,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:21:11,581 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:21:11,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:21:11,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:21:11,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:21:11,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:21:11,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:21:11,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:21:11,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:21:11,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:21:11,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:21:11,588 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:21:11,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:21:11,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:21:11,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:21:11,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:21:11,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:21:11,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:21:11,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:21:11,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:21:11,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:21:11,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:21:11,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:21:11,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:21:11,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:21:11,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:21:11,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:21:11,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:21:11,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:21:11,594 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ee0afe9c2a2e5e350a29156a4a7c18a224cec42ab7ff37fc9f10d35d9e173ae [2024-10-24 02:21:11,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:21:11,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:21:11,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:21:11,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:21:11,879 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:21:11,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-1.c [2024-10-24 02:21:13,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:21:13,902 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:21:13,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-1.c [2024-10-24 02:21:13,962 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e44a4eebf/93e8b8ce696f4590929cb2031ef5beab/FLAG761423ba5 [2024-10-24 02:21:13,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e44a4eebf/93e8b8ce696f4590929cb2031ef5beab [2024-10-24 02:21:13,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:21:13,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:21:13,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:21:13,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:21:13,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:21:13,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:21:13" (1/1) ... [2024-10-24 02:21:13,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5794d83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:13, skipping insertion in model container [2024-10-24 02:21:13,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:21:13" (1/1) ... [2024-10-24 02:21:14,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:21:15,909 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-1.c[382357,382370] [2024-10-24 02:21:15,933 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-1.c[383339,383352] [2024-10-24 02:21:16,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:21:16,117 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:21:16,896 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-1.c[382357,382370] [2024-10-24 02:21:16,899 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-1.c[383339,383352] [2024-10-24 02:21:16,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:21:16,985 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:21:16,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16 WrapperNode [2024-10-24 02:21:16,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:21:16,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:21:16,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:21:16,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:21:16,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,376 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-10-24 02:21:17,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:21:17,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:21:17,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:21:17,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:21:17,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,439 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,669 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 02:21:17,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:17,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:18,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:21:18,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:21:18,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:21:18,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:21:18,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (1/1) ... [2024-10-24 02:21:18,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:21:18,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:18,091 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 02:21:18,096 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 02:21:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:21:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:21:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:21:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:21:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:21:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:21:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:21:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:21:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:21:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:21:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:21:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:21:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:21:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:21:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:21:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:21:18,277 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:21:18,279 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:21:25,777 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-10-24 02:21:25,777 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:21:25,894 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:21:25,895 INFO L314 CfgBuilder]: Removed 9 assume(true) statements. [2024-10-24 02:21:25,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:21:25 BoogieIcfgContainer [2024-10-24 02:21:25,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:21:25,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:21:25,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:21:25,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:21:25,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:21:13" (1/3) ... [2024-10-24 02:21:25,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6120d661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:21:25, skipping insertion in model container [2024-10-24 02:21:25,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:16" (2/3) ... [2024-10-24 02:21:25,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6120d661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:21:25, skipping insertion in model container [2024-10-24 02:21:25,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:21:25" (3/3) ... [2024-10-24 02:21:25,905 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.05.cil-1.c [2024-10-24 02:21:25,921 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:21:25,922 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:21:26,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:21:26,043 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;@2415d2f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:21:26,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:21:26,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 2310 states, 2282 states have (on average 1.8825591586327783) internal successors, (4296), 2285 states have internal predecessors, (4296), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 02:21:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:26,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:26,071 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] [2024-10-24 02:21:26,072 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:26,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1867406071, now seen corresponding path program 1 times [2024-10-24 02:21:26,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:26,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314121214] [2024-10-24 02:21:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:26,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,513 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 02:21:26,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:26,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314121214] [2024-10-24 02:21:26,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314121214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:26,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:26,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:21:26,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428741317] [2024-10-24 02:21:26,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:26,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:21:26,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:26,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:21:26,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:21:26,560 INFO L87 Difference]: Start difference. First operand has 2310 states, 2282 states have (on average 1.8825591586327783) internal successors, (4296), 2285 states have internal predecessors, (4296), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 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 02:21:27,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:27,640 INFO L93 Difference]: Finished difference Result 4674 states and 8762 transitions. [2024-10-24 02:21:27,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:21:27,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:27,666 INFO L225 Difference]: With dead ends: 4674 [2024-10-24 02:21:27,666 INFO L226 Difference]: Without dead ends: 2366 [2024-10-24 02:21:27,679 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 02:21:27,684 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 480 mSDsluCounter, 12050 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 16174 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:27,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 16174 Invalid, 566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:21:27,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-10-24 02:21:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2306. [2024-10-24 02:21:27,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2279 states have (on average 1.8473014480035104) internal successors, (4210), 2281 states have internal predecessors, (4210), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 02:21:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 4248 transitions. [2024-10-24 02:21:27,829 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 4248 transitions. Word has length 91 [2024-10-24 02:21:27,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:27,829 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 4248 transitions. [2024-10-24 02:21:27,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 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 02:21:27,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 4248 transitions. [2024-10-24 02:21:27,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:27,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:27,834 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] [2024-10-24 02:21:27,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:21:27,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:27,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash 300648121, now seen corresponding path program 1 times [2024-10-24 02:21:27,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:27,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437888044] [2024-10-24 02:21:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:27,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:27,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:28,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:28,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:28,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:28,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:28,130 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 02:21:28,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:28,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437888044] [2024-10-24 02:21:28,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437888044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:28,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:28,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:21:28,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934352740] [2024-10-24 02:21:28,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:28,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:21:28,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:21:28,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:21:28,140 INFO L87 Difference]: Start difference. First operand 2306 states and 4248 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 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 02:21:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:29,724 INFO L93 Difference]: Finished difference Result 2779 states and 5016 transitions. [2024-10-24 02:21:29,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:21:29,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:29,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:29,745 INFO L225 Difference]: With dead ends: 2779 [2024-10-24 02:21:29,745 INFO L226 Difference]: Without dead ends: 2605 [2024-10-24 02:21:29,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:21:29,750 INFO L432 NwaCegarLoop]: 4103 mSDtfsCounter, 4671 mSDsluCounter, 12286 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 16389 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:29,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 16389 Invalid, 1195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:21:29,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2024-10-24 02:21:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2486. [2024-10-24 02:21:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2438 states have (on average 1.8314191960623463) internal successors, (4465), 2441 states have internal predecessors, (4465), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-10-24 02:21:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4534 transitions. [2024-10-24 02:21:29,845 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4534 transitions. Word has length 91 [2024-10-24 02:21:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:29,846 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 4534 transitions. [2024-10-24 02:21:29,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 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 02:21:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4534 transitions. [2024-10-24 02:21:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:29,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:29,849 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] [2024-10-24 02:21:29,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:21:29,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:29,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:29,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1713917117, now seen corresponding path program 1 times [2024-10-24 02:21:29,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:29,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014545315] [2024-10-24 02:21:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:29,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:29,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:29,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,064 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 02:21:30,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:30,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014545315] [2024-10-24 02:21:30,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014545315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:30,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545495894] [2024-10-24 02:21:30,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:30,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:30,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:30,067 INFO L87 Difference]: Start difference. First operand 2486 states and 4534 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:32,165 INFO L93 Difference]: Finished difference Result 3204 states and 5694 transitions. [2024-10-24 02:21:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:32,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:32,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:32,180 INFO L225 Difference]: With dead ends: 3204 [2024-10-24 02:21:32,181 INFO L226 Difference]: Without dead ends: 2850 [2024-10-24 02:21:32,184 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 02:21:32,188 INFO L432 NwaCegarLoop]: 4210 mSDtfsCounter, 4688 mSDsluCounter, 16626 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 20836 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:32,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4700 Valid, 20836 Invalid, 1869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 02:21:32,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-10-24 02:21:32,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2653. [2024-10-24 02:21:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.8165634674922602) internal successors, (4694), 2588 states have internal predecessors, (4694), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-24 02:21:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4793 transitions. [2024-10-24 02:21:32,304 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4793 transitions. Word has length 91 [2024-10-24 02:21:32,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:32,306 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4793 transitions. [2024-10-24 02:21:32,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4793 transitions. [2024-10-24 02:21:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:32,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:32,310 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] [2024-10-24 02:21:32,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:21:32,311 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:32,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash -363419781, now seen corresponding path program 1 times [2024-10-24 02:21:32,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:32,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346043218] [2024-10-24 02:21:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:32,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:32,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:32,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:32,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:32,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:32,556 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 02:21:32,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:32,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346043218] [2024-10-24 02:21:32,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346043218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:32,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:32,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:32,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947682491] [2024-10-24 02:21:32,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:32,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:32,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:32,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:32,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:32,558 INFO L87 Difference]: Start difference. First operand 2653 states and 4793 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:33,495 INFO L93 Difference]: Finished difference Result 3375 states and 5967 transitions. [2024-10-24 02:21:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:21:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:33,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:33,509 INFO L225 Difference]: With dead ends: 3375 [2024-10-24 02:21:33,509 INFO L226 Difference]: Without dead ends: 2854 [2024-10-24 02:21:33,513 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 02:21:33,514 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 4492 mSDsluCounter, 16226 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4505 SdHoareTripleChecker+Valid, 20316 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:33,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4505 Valid, 20316 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:21:33,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2024-10-24 02:21:33,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2653. [2024-10-24 02:21:33,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.8154024767801857) internal successors, (4691), 2588 states have internal predecessors, (4691), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-24 02:21:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4790 transitions. [2024-10-24 02:21:33,609 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4790 transitions. Word has length 91 [2024-10-24 02:21:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:33,609 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4790 transitions. [2024-10-24 02:21:33,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4790 transitions. [2024-10-24 02:21:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:33,613 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:33,614 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] [2024-10-24 02:21:33,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:21:33,614 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:33,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash 523803065, now seen corresponding path program 1 times [2024-10-24 02:21:33,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:33,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374699019] [2024-10-24 02:21:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:33,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:33,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:33,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:33,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:33,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:33,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:33,802 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 02:21:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:33,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374699019] [2024-10-24 02:21:33,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374699019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:33,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:33,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:33,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890183974] [2024-10-24 02:21:33,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:33,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:33,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:33,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:33,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:33,809 INFO L87 Difference]: Start difference. First operand 2653 states and 4790 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:34,658 INFO L93 Difference]: Finished difference Result 3371 states and 5950 transitions. [2024-10-24 02:21:34,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:21:34,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:34,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:34,669 INFO L225 Difference]: With dead ends: 3371 [2024-10-24 02:21:34,670 INFO L226 Difference]: Without dead ends: 2850 [2024-10-24 02:21:34,675 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 02:21:34,676 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 4490 mSDsluCounter, 16226 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 20316 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:34,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4503 Valid, 20316 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:21:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-10-24 02:21:34,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2653. [2024-10-24 02:21:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.8142414860681115) internal successors, (4688), 2588 states have internal predecessors, (4688), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-24 02:21:34,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4787 transitions. [2024-10-24 02:21:34,750 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4787 transitions. Word has length 91 [2024-10-24 02:21:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:34,751 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4787 transitions. [2024-10-24 02:21:34,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4787 transitions. [2024-10-24 02:21:34,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:34,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:34,752 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] [2024-10-24 02:21:34,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:21:34,752 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:34,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:34,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1387239493, now seen corresponding path program 1 times [2024-10-24 02:21:34,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:34,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255328101] [2024-10-24 02:21:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:34,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,898 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 02:21:34,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:34,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255328101] [2024-10-24 02:21:34,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255328101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:34,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:34,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:34,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475635741] [2024-10-24 02:21:34,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:34,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:34,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:34,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:34,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:34,900 INFO L87 Difference]: Start difference. First operand 2653 states and 4787 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:35,719 INFO L93 Difference]: Finished difference Result 3367 states and 5933 transitions. [2024-10-24 02:21:35,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:21:35,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:35,731 INFO L225 Difference]: With dead ends: 3367 [2024-10-24 02:21:35,731 INFO L226 Difference]: Without dead ends: 2846 [2024-10-24 02:21:35,735 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 02:21:35,736 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 4488 mSDsluCounter, 16226 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 20316 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:35,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4501 Valid, 20316 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:21:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2024-10-24 02:21:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2653. [2024-10-24 02:21:35,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2584 states have (on average 1.813080495356037) internal successors, (4685), 2588 states have internal predecessors, (4685), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-10-24 02:21:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4784 transitions. [2024-10-24 02:21:35,810 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4784 transitions. Word has length 91 [2024-10-24 02:21:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:35,811 INFO L471 AbstractCegarLoop]: Abstraction has 2653 states and 4784 transitions. [2024-10-24 02:21:35,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4784 transitions. [2024-10-24 02:21:35,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:35,812 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:35,812 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] [2024-10-24 02:21:35,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:21:35,812 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:35,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:35,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1310338695, now seen corresponding path program 1 times [2024-10-24 02:21:35,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:35,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095205045] [2024-10-24 02:21:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:35,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:35,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:35,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:35,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:35,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:35,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:35,971 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 02:21:35,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:35,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095205045] [2024-10-24 02:21:35,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095205045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:35,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:35,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:35,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061607418] [2024-10-24 02:21:35,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:35,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:35,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:35,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:35,973 INFO L87 Difference]: Start difference. First operand 2653 states and 4784 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:37,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:37,531 INFO L93 Difference]: Finished difference Result 3949 states and 6833 transitions. [2024-10-24 02:21:37,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:37,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:37,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:37,550 INFO L225 Difference]: With dead ends: 3949 [2024-10-24 02:21:37,551 INFO L226 Difference]: Without dead ends: 3428 [2024-10-24 02:21:37,554 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 02:21:37,554 INFO L432 NwaCegarLoop]: 4114 mSDtfsCounter, 4898 mSDsluCounter, 16369 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 20483 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:37,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 20483 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:21:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2024-10-24 02:21:37,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 2996. [2024-10-24 02:21:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2887 states have (on average 1.7852441981295462) internal successors, (5154), 2893 states have internal predecessors, (5154), 73 states have call successors, (73), 30 states have call predecessors, (73), 34 states have return successors, (86), 76 states have call predecessors, (86), 73 states have call successors, (86) [2024-10-24 02:21:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 5313 transitions. [2024-10-24 02:21:37,653 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 5313 transitions. Word has length 91 [2024-10-24 02:21:37,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:37,654 INFO L471 AbstractCegarLoop]: Abstraction has 2996 states and 5313 transitions. [2024-10-24 02:21:37,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:37,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 5313 transitions. [2024-10-24 02:21:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:37,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:37,656 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] [2024-10-24 02:21:37,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:21:37,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:37,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:37,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2017277947, now seen corresponding path program 1 times [2024-10-24 02:21:37,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:37,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154243070] [2024-10-24 02:21:37,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:37,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:37,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:37,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:37,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:37,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:37,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:37,809 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 02:21:37,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:37,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154243070] [2024-10-24 02:21:37,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154243070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:37,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:37,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:37,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700287330] [2024-10-24 02:21:37,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:37,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:37,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:37,811 INFO L87 Difference]: Start difference. First operand 2996 states and 5313 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:39,671 INFO L93 Difference]: Finished difference Result 5232 states and 8832 transitions. [2024-10-24 02:21:39,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:39,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:39,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:39,689 INFO L225 Difference]: With dead ends: 5232 [2024-10-24 02:21:39,689 INFO L226 Difference]: Without dead ends: 4368 [2024-10-24 02:21:39,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:39,693 INFO L432 NwaCegarLoop]: 4205 mSDtfsCounter, 4697 mSDsluCounter, 16618 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 20823 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:39,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4708 Valid, 20823 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:21:39,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4368 states. [2024-10-24 02:21:39,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4368 to 3653. [2024-10-24 02:21:39,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3653 states, 3466 states have (on average 1.7443739180611657) internal successors, (6046), 3476 states have internal predecessors, (6046), 123 states have call successors, (123), 54 states have call predecessors, (123), 62 states have return successors, (158), 130 states have call predecessors, (158), 123 states have call successors, (158) [2024-10-24 02:21:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3653 states to 3653 states and 6327 transitions. [2024-10-24 02:21:39,838 INFO L78 Accepts]: Start accepts. Automaton has 3653 states and 6327 transitions. Word has length 91 [2024-10-24 02:21:39,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:39,839 INFO L471 AbstractCegarLoop]: Abstraction has 3653 states and 6327 transitions. [2024-10-24 02:21:39,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 6327 transitions. [2024-10-24 02:21:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:39,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:39,844 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] [2024-10-24 02:21:39,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:21:39,844 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:39,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:39,845 INFO L85 PathProgramCache]: Analyzing trace with hash -369231559, now seen corresponding path program 1 times [2024-10-24 02:21:39,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:39,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14666700] [2024-10-24 02:21:39,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:39,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:39,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:39,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:39,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:39,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:39,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:39,996 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 02:21:39,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14666700] [2024-10-24 02:21:39,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14666700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:39,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:39,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:39,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143444764] [2024-10-24 02:21:39,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:39,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:39,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:39,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:39,999 INFO L87 Difference]: Start difference. First operand 3653 states and 6327 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:41,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:41,670 INFO L93 Difference]: Finished difference Result 7675 states and 12640 transitions. [2024-10-24 02:21:41,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:41,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:41,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:41,693 INFO L225 Difference]: With dead ends: 7675 [2024-10-24 02:21:41,693 INFO L226 Difference]: Without dead ends: 6154 [2024-10-24 02:21:41,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:41,702 INFO L432 NwaCegarLoop]: 4206 mSDtfsCounter, 4778 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:41,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 20827 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:21:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2024-10-24 02:21:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 4986. [2024-10-24 02:21:41,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4986 states, 4647 states have (on average 1.6931353561437485) internal successors, (7868), 4665 states have internal predecessors, (7868), 219 states have call successors, (219), 102 states have call predecessors, (219), 118 states have return successors, (316), 234 states have call predecessors, (316), 219 states have call successors, (316) [2024-10-24 02:21:41,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4986 states to 4986 states and 8403 transitions. [2024-10-24 02:21:41,945 INFO L78 Accepts]: Start accepts. Automaton has 4986 states and 8403 transitions. Word has length 91 [2024-10-24 02:21:41,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:41,946 INFO L471 AbstractCegarLoop]: Abstraction has 4986 states and 8403 transitions. [2024-10-24 02:21:41,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:41,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4986 states and 8403 transitions. [2024-10-24 02:21:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:41,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:41,949 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] [2024-10-24 02:21:41,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:21:41,950 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:41,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:41,951 INFO L85 PathProgramCache]: Analyzing trace with hash -861857733, now seen corresponding path program 1 times [2024-10-24 02:21:41,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:41,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227245001] [2024-10-24 02:21:41,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:41,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:42,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:42,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:42,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:42,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:42,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:42,112 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 02:21:42,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:42,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227245001] [2024-10-24 02:21:42,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227245001] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:42,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:42,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:42,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950124291] [2024-10-24 02:21:42,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:42,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:42,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:42,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:42,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:42,114 INFO L87 Difference]: Start difference. First operand 4986 states and 8403 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:44,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:44,056 INFO L93 Difference]: Finished difference Result 12494 states and 20210 transitions. [2024-10-24 02:21:44,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:44,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:44,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:44,093 INFO L225 Difference]: With dead ends: 12494 [2024-10-24 02:21:44,094 INFO L226 Difference]: Without dead ends: 9640 [2024-10-24 02:21:44,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:44,109 INFO L432 NwaCegarLoop]: 4206 mSDtfsCounter, 4748 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4766 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:44,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4766 Valid, 20827 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:21:44,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9640 states. [2024-10-24 02:21:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9640 to 7651. [2024-10-24 02:21:44,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7651 states, 7016 states have (on average 1.6428164196123147) internal successors, (11526), 7050 states have internal predecessors, (11526), 403 states have call successors, (403), 198 states have call predecessors, (403), 230 states have return successors, (678), 434 states have call predecessors, (678), 403 states have call successors, (678) [2024-10-24 02:21:44,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7651 states to 7651 states and 12607 transitions. [2024-10-24 02:21:44,663 INFO L78 Accepts]: Start accepts. Automaton has 7651 states and 12607 transitions. Word has length 91 [2024-10-24 02:21:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:44,663 INFO L471 AbstractCegarLoop]: Abstraction has 7651 states and 12607 transitions. [2024-10-24 02:21:44,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7651 states and 12607 transitions. [2024-10-24 02:21:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:44,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:44,670 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] [2024-10-24 02:21:44,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:21:44,670 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:44,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash 92082425, now seen corresponding path program 1 times [2024-10-24 02:21:44,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:44,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184349693] [2024-10-24 02:21:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:44,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:44,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:44,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:44,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:44,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:44,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:44,833 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 02:21:44,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184349693] [2024-10-24 02:21:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184349693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221488095] [2024-10-24 02:21:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:44,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:44,836 INFO L87 Difference]: Start difference. First operand 7651 states and 12607 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:46,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:46,920 INFO L93 Difference]: Finished difference Result 21475 states and 34508 transitions. [2024-10-24 02:21:46,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:46,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:46,983 INFO L225 Difference]: With dead ends: 21475 [2024-10-24 02:21:46,983 INFO L226 Difference]: Without dead ends: 15956 [2024-10-24 02:21:47,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:47,010 INFO L432 NwaCegarLoop]: 4206 mSDtfsCounter, 4670 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4688 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:47,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4688 Valid, 20827 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:21:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15956 states. [2024-10-24 02:21:47,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15956 to 13013. [2024-10-24 02:21:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13013 states, 11802 states have (on average 1.6046432807998645) internal successors, (18938), 11868 states have internal predecessors, (18938), 755 states have call successors, (755), 390 states have call predecessors, (755), 454 states have return successors, (1548), 818 states have call predecessors, (1548), 755 states have call successors, (1548) [2024-10-24 02:21:47,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13013 states to 13013 states and 21241 transitions. [2024-10-24 02:21:47,894 INFO L78 Accepts]: Start accepts. Automaton has 13013 states and 21241 transitions. Word has length 91 [2024-10-24 02:21:47,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:47,895 INFO L471 AbstractCegarLoop]: Abstraction has 13013 states and 21241 transitions. [2024-10-24 02:21:47,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 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 02:21:47,895 INFO L276 IsEmpty]: Start isEmpty. Operand 13013 states and 21241 transitions. [2024-10-24 02:21:47,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 02:21:47,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:47,905 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] [2024-10-24 02:21:47,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:21:47,906 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:47,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:47,906 INFO L85 PathProgramCache]: Analyzing trace with hash -639885001, now seen corresponding path program 1 times [2024-10-24 02:21:47,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:47,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268571644] [2024-10-24 02:21:47,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:47,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:47,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:47,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:47,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:48,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:48,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:48,022 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 02:21:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:48,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268571644] [2024-10-24 02:21:48,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268571644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:48,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:48,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:21:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208214197] [2024-10-24 02:21:48,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:48,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:21:48,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:21:48,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:21:48,024 INFO L87 Difference]: Start difference. First operand 13013 states and 21241 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 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 02:21:50,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:50,338 INFO L93 Difference]: Finished difference Result 33124 states and 53179 transitions. [2024-10-24 02:21:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:21:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 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 91 [2024-10-24 02:21:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:50,418 INFO L225 Difference]: With dead ends: 33124 [2024-10-24 02:21:50,418 INFO L226 Difference]: Without dead ends: 22244 [2024-10-24 02:21:50,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 02:21:50,460 INFO L432 NwaCegarLoop]: 4249 mSDtfsCounter, 4875 mSDsluCounter, 12381 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 16630 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:50,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 16630 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:21:50,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22244 states. [2024-10-24 02:21:51,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22244 to 18457. [2024-10-24 02:21:51,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18457 states, 16617 states have (on average 1.5798278871035687) internal successors, (26252), 16748 states have internal predecessors, (26252), 1154 states have call successors, (1154), 588 states have call predecessors, (1154), 684 states have return successors, (2191), 1184 states have call predecessors, (2191), 1154 states have call successors, (2191) [2024-10-24 02:21:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18457 states to 18457 states and 29597 transitions. [2024-10-24 02:21:51,837 INFO L78 Accepts]: Start accepts. Automaton has 18457 states and 29597 transitions. Word has length 91 [2024-10-24 02:21:51,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:51,838 INFO L471 AbstractCegarLoop]: Abstraction has 18457 states and 29597 transitions. [2024-10-24 02:21:51,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 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 02:21:51,838 INFO L276 IsEmpty]: Start isEmpty. Operand 18457 states and 29597 transitions. [2024-10-24 02:21:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 02:21:51,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:51,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:51,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:21:51,882 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:51,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:51,883 INFO L85 PathProgramCache]: Analyzing trace with hash 239471349, now seen corresponding path program 1 times [2024-10-24 02:21:51,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:51,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155670605] [2024-10-24 02:21:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:51,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:51,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:51,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 02:21:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 02:21:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:21:52,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:52,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155670605] [2024-10-24 02:21:52,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155670605] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:52,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114986934] [2024-10-24 02:21:52,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:52,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:52,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:52,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:52,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 02:21:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:52,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:52,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 02:21:52,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114986934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:52,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:52,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:21:52,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132430258] [2024-10-24 02:21:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:52,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:52,388 INFO L87 Difference]: Start difference. First operand 18457 states and 29597 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:21:53,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:53,931 INFO L93 Difference]: Finished difference Result 50706 states and 80639 transitions. [2024-10-24 02:21:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-10-24 02:21:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:54,063 INFO L225 Difference]: With dead ends: 50706 [2024-10-24 02:21:54,063 INFO L226 Difference]: Without dead ends: 34382 [2024-10-24 02:21:54,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:54,120 INFO L432 NwaCegarLoop]: 4218 mSDtfsCounter, 4191 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:54,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4191 Valid, 4457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:21:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34382 states. [2024-10-24 02:21:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34382 to 34282. [2024-10-24 02:21:56,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34282 states, 30710 states have (on average 1.557896450667535) internal successors, (47843), 30970 states have internal predecessors, (47843), 2204 states have call successors, (2204), 1174 states have call predecessors, (2204), 1366 states have return successors, (4215), 2201 states have call predecessors, (4215), 2204 states have call successors, (4215) [2024-10-24 02:21:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34282 states to 34282 states and 54262 transitions. [2024-10-24 02:21:56,112 INFO L78 Accepts]: Start accepts. Automaton has 34282 states and 54262 transitions. Word has length 147 [2024-10-24 02:21:56,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:56,113 INFO L471 AbstractCegarLoop]: Abstraction has 34282 states and 54262 transitions. [2024-10-24 02:21:56,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:21:56,114 INFO L276 IsEmpty]: Start isEmpty. Operand 34282 states and 54262 transitions. [2024-10-24 02:21:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 02:21:56,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:56,179 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:56,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 02:21:56,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-24 02:21:56,384 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:56,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:56,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1225510413, now seen corresponding path program 1 times [2024-10-24 02:21:56,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:56,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609294855] [2024-10-24 02:21:56,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:56,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:21:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:21:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:21:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:21:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 02:21:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 02:21:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:21:56,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609294855] [2024-10-24 02:21:56,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609294855] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739292134] [2024-10-24 02:21:56,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:56,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:56,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:56,548 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:56,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 02:21:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:56,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:56,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:56,769 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 02:21:56,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:56,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739292134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:56,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:56,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:21:56,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688103857] [2024-10-24 02:21:56,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:56,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:56,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:56,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:56,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:56,772 INFO L87 Difference]: Start difference. First operand 34282 states and 54262 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:22:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:22:00,802 INFO L93 Difference]: Finished difference Result 97981 states and 154794 transitions. [2024-10-24 02:22:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:22:00,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-10-24 02:22:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:22:01,080 INFO L225 Difference]: With dead ends: 97981 [2024-10-24 02:22:01,081 INFO L226 Difference]: Without dead ends: 65832 [2024-10-24 02:22:01,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:22:01,175 INFO L432 NwaCegarLoop]: 4218 mSDtfsCounter, 4181 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4181 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:22:01,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4181 Valid, 4457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:22:01,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65832 states. [2024-10-24 02:22:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65832 to 65634. [2024-10-24 02:22:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65634 states, 58600 states have (on average 1.543259385665529) internal successors, (90435), 59118 states have internal predecessors, (90435), 4302 states have call successors, (4302), 2346 states have call predecessors, (4302), 2730 states have return successors, (8261), 4233 states have call predecessors, (8261), 4302 states have call successors, (8261) [2024-10-24 02:22:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65634 states to 65634 states and 102998 transitions. [2024-10-24 02:22:05,666 INFO L78 Accepts]: Start accepts. Automaton has 65634 states and 102998 transitions. Word has length 147 [2024-10-24 02:22:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:22:05,667 INFO L471 AbstractCegarLoop]: Abstraction has 65634 states and 102998 transitions. [2024-10-24 02:22:05,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:22:05,667 INFO L276 IsEmpty]: Start isEmpty. Operand 65634 states and 102998 transitions. [2024-10-24 02:22:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 02:22:05,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:22:05,808 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:05,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 02:22:06,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 02:22:06,012 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:22:06,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:22:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1385782897, now seen corresponding path program 1 times [2024-10-24 02:22:06,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:22:06,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867704457] [2024-10-24 02:22:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:22:06,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:22:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:22:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 02:22:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 02:22:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 02:22:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 02:22:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 02:22:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:22:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 02:22:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,190 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:22:06,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:22:06,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867704457] [2024-10-24 02:22:06,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867704457] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:22:06,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94388067] [2024-10-24 02:22:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:22:06,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:22:06,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:22:06,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:22:06,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 02:22:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:22:06,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:22:06,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:22:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-24 02:22:06,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:22:06,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94388067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:22:06,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:22:06,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:22:06,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304953584] [2024-10-24 02:22:06,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:22:06,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:22:06,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:22:06,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:22:06,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:22:06,406 INFO L87 Difference]: Start difference. First operand 65634 states and 102998 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:22:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:22:13,908 INFO L93 Difference]: Finished difference Result 191433 states and 300920 transitions. [2024-10-24 02:22:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:22:13,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-10-24 02:22:13,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:22:14,459 INFO L225 Difference]: With dead ends: 191433 [2024-10-24 02:22:14,459 INFO L226 Difference]: Without dead ends: 127932 [2024-10-24 02:22:14,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:22:14,613 INFO L432 NwaCegarLoop]: 4218 mSDtfsCounter, 4196 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4196 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:22:14,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4196 Valid, 4457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 02:22:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127932 states.