./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_label41+token_ring.06.cil-2.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_label41+token_ring.06.cil-2.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 b643fcd36e1cc4587225d57a08c62d9a71f0676d69600864fd61c6c0403013f3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:11:14,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:11:14,913 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:11:14,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:11:14,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:11:14,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:11:14,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:11:14,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:11:14,972 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:11:14,973 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:11:14,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:11:14,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:11:14,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:11:14,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:11:14,975 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:11:14,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:11:14,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:11:14,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:11:14,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:11:14,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:11:14,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:11:14,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:11:14,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:11:14,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:11:14,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:11:14,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:11:14,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:11:14,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:11:14,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:11:14,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:11:14,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:11:14,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:11:14,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:11:14,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:11:14,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:11:14,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:11:14,981 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:11:14,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:11:14,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:11:14,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:11:14,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:11:14,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:11:14,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b643fcd36e1cc4587225d57a08c62d9a71f0676d69600864fd61c6c0403013f3 [2024-10-24 02:11:15,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:11:15,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:11:15,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:11:15,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:11:15,243 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:11:15,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.06.cil-2.c [2024-10-24 02:11:16,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:11:17,142 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:11:17,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.06.cil-2.c [2024-10-24 02:11:17,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba879109/2966cca2c08f418a8d0fa519f0887d46/FLAG2c5f09834 [2024-10-24 02:11:17,193 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba879109/2966cca2c08f418a8d0fa519f0887d46 [2024-10-24 02:11:17,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:11:17,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:11:17,199 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:11:17,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:11:17,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:11:17,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:17" (1/1) ... [2024-10-24 02:11:17,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35618015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:17, skipping insertion in model container [2024-10-24 02:11:17,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:17" (1/1) ... [2024-10-24 02:11:17,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:11:18,652 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_label41+token_ring.06.cil-2.c[376251,376264] [2024-10-24 02:11:18,680 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_label41+token_ring.06.cil-2.c[383339,383352] [2024-10-24 02:11:18,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:11:18,851 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:11:19,463 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_label41+token_ring.06.cil-2.c[376251,376264] [2024-10-24 02:11:19,469 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_label41+token_ring.06.cil-2.c[383339,383352] [2024-10-24 02:11:19,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:11:19,563 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:11:19,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19 WrapperNode [2024-10-24 02:11:19,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:11:19,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:11:19,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:11:19,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:11:19,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:19,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:19,988 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12873 [2024-10-24 02:11:19,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:11:19,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:11:19,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:11:19,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:11:19,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:19,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,156 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,239 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 02:11:20,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:11:20,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:11:20,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:11:20,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:11:20,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (1/1) ... [2024-10-24 02:11:20,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:11:20,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:11:20,558 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 02:11:20,563 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 02:11:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:11:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:11:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:11:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:11:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:11:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:11:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:11:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:11:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:11:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:11:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:11:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:11:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:11:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:11:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:11:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:11:20,687 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:11:20,689 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:11:27,256 INFO L? ?]: Removed 1719 outVars from TransFormulas that were not future-live. [2024-10-24 02:11:27,256 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:11:27,324 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:11:27,324 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-24 02:11:27,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:27 BoogieIcfgContainer [2024-10-24 02:11:27,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:11:27,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:11:27,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:11:27,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:11:27,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:11:17" (1/3) ... [2024-10-24 02:11:27,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1de709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:27, skipping insertion in model container [2024-10-24 02:11:27,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:19" (2/3) ... [2024-10-24 02:11:27,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1de709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:27, skipping insertion in model container [2024-10-24 02:11:27,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:27" (3/3) ... [2024-10-24 02:11:27,331 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.06.cil-2.c [2024-10-24 02:11:27,343 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:11:27,343 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:11:27,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:11:27,425 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;@65beae34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:11:27,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:11:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 02:11:27,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:27,448 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:27,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:27,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:27,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:27,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1188096418, now seen corresponding path program 1 times [2024-10-24 02:11:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:27,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148548430] [2024-10-24 02:11:27,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:27,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:27,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:27,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:27,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:27,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:27,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:27,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:27,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148548430] [2024-10-24 02:11:27,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148548430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:27,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:27,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:11:27,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525302763] [2024-10-24 02:11:27,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:27,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:11:27,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:27,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:11:27,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:11:27,898 INFO L87 Difference]: Start difference. First operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:28,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:28,814 INFO L93 Difference]: Finished difference Result 4728 states and 8858 transitions. [2024-10-24 02:11:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:11:28,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:28,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:28,835 INFO L225 Difference]: With dead ends: 4728 [2024-10-24 02:11:28,835 INFO L226 Difference]: Without dead ends: 2399 [2024-10-24 02:11:28,843 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 02:11:28,845 INFO L432 NwaCegarLoop]: 4143 mSDtfsCounter, 553 mSDsluCounter, 12072 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 16215 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:28,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 16215 Invalid, 643 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [44 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:11:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2024-10-24 02:11:28,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2329. [2024-10-24 02:11:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8457192524989134) internal successors, (4247), 2303 states have internal predecessors, (4247), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 02:11:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4287 transitions. [2024-10-24 02:11:28,965 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4287 transitions. Word has length 101 [2024-10-24 02:11:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:28,966 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4287 transitions. [2024-10-24 02:11:28,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4287 transitions. [2024-10-24 02:11:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:28,972 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:28,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:28,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:11:28,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:28,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:28,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1229807648, now seen corresponding path program 1 times [2024-10-24 02:11:28,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:28,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069623065] [2024-10-24 02:11:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:28,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:29,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:29,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:29,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:29,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:29,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:29,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:29,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069623065] [2024-10-24 02:11:29,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069623065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:29,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:29,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:29,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737327767] [2024-10-24 02:11:29,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:29,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:29,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:29,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:29,195 INFO L87 Difference]: Start difference. First operand 2329 states and 4287 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:30,970 INFO L93 Difference]: Finished difference Result 2881 states and 5198 transitions. [2024-10-24 02:11:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:30,983 INFO L225 Difference]: With dead ends: 2881 [2024-10-24 02:11:30,984 INFO L226 Difference]: Without dead ends: 2685 [2024-10-24 02:11:30,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:30,987 INFO L432 NwaCegarLoop]: 4241 mSDtfsCounter, 4743 mSDsluCounter, 16733 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 20974 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:30,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 20974 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:11:30,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2024-10-24 02:11:31,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2536. [2024-10-24 02:11:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2483 states have (on average 1.829238824003222) internal successors, (4542), 2487 states have internal predecessors, (4542), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-10-24 02:11:31,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 4623 transitions. [2024-10-24 02:11:31,144 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 4623 transitions. Word has length 101 [2024-10-24 02:11:31,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:31,145 INFO L471 AbstractCegarLoop]: Abstraction has 2536 states and 4623 transitions. [2024-10-24 02:11:31,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:31,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 4623 transitions. [2024-10-24 02:11:31,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:31,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:31,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:31,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:11:31,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:31,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:31,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1188676830, now seen corresponding path program 1 times [2024-10-24 02:11:31,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:31,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717476078] [2024-10-24 02:11:31,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:31,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:31,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:31,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:31,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:31,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:31,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:31,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:31,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:31,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717476078] [2024-10-24 02:11:31,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717476078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:31,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:31,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:31,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123118154] [2024-10-24 02:11:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:31,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:31,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:31,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:31,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:31,429 INFO L87 Difference]: Start difference. First operand 2536 states and 4623 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:33,357 INFO L93 Difference]: Finished difference Result 3580 states and 6330 transitions. [2024-10-24 02:11:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:33,369 INFO L225 Difference]: With dead ends: 3580 [2024-10-24 02:11:33,369 INFO L226 Difference]: Without dead ends: 3179 [2024-10-24 02:11:33,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:33,372 INFO L432 NwaCegarLoop]: 4202 mSDtfsCounter, 4768 mSDsluCounter, 16681 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 20883 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:33,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 20883 Invalid, 2026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:11:33,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2024-10-24 02:11:33,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2914. [2024-10-24 02:11:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.8008519701810437) internal successors, (5073), 2823 states have internal predecessors, (5073), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:11:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5224 transitions. [2024-10-24 02:11:33,477 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5224 transitions. Word has length 101 [2024-10-24 02:11:33,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:33,477 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5224 transitions. [2024-10-24 02:11:33,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5224 transitions. [2024-10-24 02:11:33,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:33,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:33,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:33,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:11:33,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:33,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1227159520, now seen corresponding path program 1 times [2024-10-24 02:11:33,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:33,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888474817] [2024-10-24 02:11:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:33,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:33,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888474817] [2024-10-24 02:11:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888474817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:33,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:33,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:33,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568628541] [2024-10-24 02:11:33,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:33,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:33,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:33,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:33,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:33,665 INFO L87 Difference]: Start difference. First operand 2914 states and 5224 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:34,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:34,504 INFO L93 Difference]: Finished difference Result 3965 states and 6956 transitions. [2024-10-24 02:11:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:34,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:34,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:34,514 INFO L225 Difference]: With dead ends: 3965 [2024-10-24 02:11:34,514 INFO L226 Difference]: Without dead ends: 3184 [2024-10-24 02:11:34,517 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 02:11:34,518 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 4644 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 16333 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:34,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 16333 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:11:34,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2024-10-24 02:11:34,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 2914. [2024-10-24 02:11:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.7990770323038694) internal successors, (5068), 2823 states have internal predecessors, (5068), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:11:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5219 transitions. [2024-10-24 02:11:34,595 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5219 transitions. Word has length 101 [2024-10-24 02:11:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:34,596 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5219 transitions. [2024-10-24 02:11:34,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5219 transitions. [2024-10-24 02:11:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:34,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:34,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:34,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:11:34,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:34,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:34,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1742951582, now seen corresponding path program 1 times [2024-10-24 02:11:34,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:34,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290315419] [2024-10-24 02:11:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:34,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:34,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:34,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:34,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:34,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:34,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:34,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:34,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:34,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290315419] [2024-10-24 02:11:34,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290315419] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:34,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:34,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:34,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136400516] [2024-10-24 02:11:34,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:34,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:34,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:34,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:34,737 INFO L87 Difference]: Start difference. First operand 2914 states and 5219 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:35,498 INFO L93 Difference]: Finished difference Result 3961 states and 6935 transitions. [2024-10-24 02:11:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:35,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:35,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:35,508 INFO L225 Difference]: With dead ends: 3961 [2024-10-24 02:11:35,508 INFO L226 Difference]: Without dead ends: 3180 [2024-10-24 02:11:35,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:35,512 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 4642 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4656 SdHoareTripleChecker+Valid, 16333 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:35,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4656 Valid, 16333 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:11:35,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2024-10-24 02:11:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2914. [2024-10-24 02:11:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.797302094426695) internal successors, (5063), 2823 states have internal predecessors, (5063), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:11:35,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5214 transitions. [2024-10-24 02:11:35,584 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5214 transitions. Word has length 101 [2024-10-24 02:11:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:35,585 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5214 transitions. [2024-10-24 02:11:35,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5214 transitions. [2024-10-24 02:11:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:35,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:35,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:35,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:11:35,588 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:35,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:35,588 INFO L85 PathProgramCache]: Analyzing trace with hash -176193632, now seen corresponding path program 1 times [2024-10-24 02:11:35,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:35,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617045253] [2024-10-24 02:11:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:35,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:35,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:35,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617045253] [2024-10-24 02:11:35,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617045253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:35,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:35,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885285650] [2024-10-24 02:11:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:35,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:35,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:35,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:35,732 INFO L87 Difference]: Start difference. First operand 2914 states and 5214 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:36,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:36,644 INFO L93 Difference]: Finished difference Result 3956 states and 6912 transitions. [2024-10-24 02:11:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:36,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:36,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:36,654 INFO L225 Difference]: With dead ends: 3956 [2024-10-24 02:11:36,654 INFO L226 Difference]: Without dead ends: 3175 [2024-10-24 02:11:36,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:36,658 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 4555 mSDsluCounter, 16280 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 20387 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:36,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 20387 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:11:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2024-10-24 02:11:36,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2914. [2024-10-24 02:11:36,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.7955271565495208) internal successors, (5058), 2823 states have internal predecessors, (5058), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:11:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5209 transitions. [2024-10-24 02:11:36,758 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5209 transitions. Word has length 101 [2024-10-24 02:11:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:36,759 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5209 transitions. [2024-10-24 02:11:36,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5209 transitions. [2024-10-24 02:11:36,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:36,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:36,761 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:36,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:11:36,761 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:36,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:36,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1234031710, now seen corresponding path program 1 times [2024-10-24 02:11:36,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:36,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248989606] [2024-10-24 02:11:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:36,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:36,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:36,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:36,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:36,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:36,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:36,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:36,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248989606] [2024-10-24 02:11:36,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248989606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:36,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:36,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:36,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33656777] [2024-10-24 02:11:36,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:36,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:36,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:36,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:36,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:36,908 INFO L87 Difference]: Start difference. First operand 2914 states and 5209 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:38,718 INFO L93 Difference]: Finished difference Result 4927 states and 8441 transitions. [2024-10-24 02:11:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:38,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:38,731 INFO L225 Difference]: With dead ends: 4927 [2024-10-24 02:11:38,731 INFO L226 Difference]: Without dead ends: 4148 [2024-10-24 02:11:38,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:38,736 INFO L432 NwaCegarLoop]: 4240 mSDtfsCounter, 4734 mSDsluCounter, 16733 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 20973 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:38,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 20973 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:11:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2024-10-24 02:11:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3681. [2024-10-24 02:11:38,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3496 states have (on average 1.7502860411899313) internal successors, (6119), 3506 states have internal predecessors, (6119), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-10-24 02:11:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 6416 transitions. [2024-10-24 02:11:38,866 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 6416 transitions. Word has length 101 [2024-10-24 02:11:38,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:38,866 INFO L471 AbstractCegarLoop]: Abstraction has 3681 states and 6416 transitions. [2024-10-24 02:11:38,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:38,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 6416 transitions. [2024-10-24 02:11:38,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:38,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:38,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:38,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:11:38,872 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:38,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:38,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1918433120, now seen corresponding path program 1 times [2024-10-24 02:11:38,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:38,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105839526] [2024-10-24 02:11:38,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:38,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:38,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:39,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:39,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:39,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:39,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:39,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105839526] [2024-10-24 02:11:39,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105839526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:39,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:39,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:39,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510807398] [2024-10-24 02:11:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:39,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:39,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:39,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:39,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:39,037 INFO L87 Difference]: Start difference. First operand 3681 states and 6416 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:40,852 INFO L93 Difference]: Finished difference Result 8286 states and 13806 transitions. [2024-10-24 02:11:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:40,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:40,873 INFO L225 Difference]: With dead ends: 8286 [2024-10-24 02:11:40,873 INFO L226 Difference]: Without dead ends: 6740 [2024-10-24 02:11:40,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:40,881 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4964 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:40,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 20963 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:11:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6740 states. [2024-10-24 02:11:41,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6740 to 5206. [2024-10-24 02:11:41,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5206 states, 4853 states have (on average 1.6985369874304554) internal successors, (8243), 4871 states have internal predecessors, (8243), 239 states have call successors, (239), 96 states have call predecessors, (239), 112 states have return successors, (352), 254 states have call predecessors, (352), 239 states have call successors, (352) [2024-10-24 02:11:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 5206 states and 8834 transitions. [2024-10-24 02:11:41,059 INFO L78 Accepts]: Start accepts. Automaton has 5206 states and 8834 transitions. Word has length 101 [2024-10-24 02:11:41,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:41,060 INFO L471 AbstractCegarLoop]: Abstraction has 5206 states and 8834 transitions. [2024-10-24 02:11:41,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5206 states and 8834 transitions. [2024-10-24 02:11:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:41,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:41,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:41,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:11:41,063 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:41,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash -2136294430, now seen corresponding path program 1 times [2024-10-24 02:11:41,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:41,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250323243] [2024-10-24 02:11:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:41,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:41,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:41,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250323243] [2024-10-24 02:11:41,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250323243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:41,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:41,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:41,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786847044] [2024-10-24 02:11:41,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:41,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:41,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:41,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:41,198 INFO L87 Difference]: Start difference. First operand 5206 states and 8834 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:43,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:43,240 INFO L93 Difference]: Finished difference Result 13949 states and 22916 transitions. [2024-10-24 02:11:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:43,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:43,266 INFO L225 Difference]: With dead ends: 13949 [2024-10-24 02:11:43,266 INFO L226 Difference]: Without dead ends: 10878 [2024-10-24 02:11:43,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:43,275 INFO L432 NwaCegarLoop]: 4237 mSDtfsCounter, 4907 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4927 SdHoareTripleChecker+Valid, 20965 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:43,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4927 Valid, 20965 Invalid, 2063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:11:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2024-10-24 02:11:43,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 8271. [2024-10-24 02:11:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8271 states, 7590 states have (on average 1.6517786561264822) internal successors, (12537), 7624 states have internal predecessors, (12537), 455 states have call successors, (455), 192 states have call predecessors, (455), 224 states have return successors, (762), 486 states have call predecessors, (762), 455 states have call successors, (762) [2024-10-24 02:11:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8271 states to 8271 states and 13754 transitions. [2024-10-24 02:11:43,582 INFO L78 Accepts]: Start accepts. Automaton has 8271 states and 13754 transitions. Word has length 101 [2024-10-24 02:11:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:43,583 INFO L471 AbstractCegarLoop]: Abstraction has 8271 states and 13754 transitions. [2024-10-24 02:11:43,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:43,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8271 states and 13754 transitions. [2024-10-24 02:11:43,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:43,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:43,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:43,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:11:43,588 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:43,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:43,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2109228828, now seen corresponding path program 1 times [2024-10-24 02:11:43,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:43,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6969680] [2024-10-24 02:11:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:43,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6969680] [2024-10-24 02:11:43,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6969680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:43,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:43,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:43,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136912140] [2024-10-24 02:11:43,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:43,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:43,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:43,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:43,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:43,694 INFO L87 Difference]: Start difference. First operand 8271 states and 13754 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:45,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:45,804 INFO L93 Difference]: Finished difference Result 25224 states and 41230 transitions. [2024-10-24 02:11:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:45,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:45,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:45,850 INFO L225 Difference]: With dead ends: 25224 [2024-10-24 02:11:45,850 INFO L226 Difference]: Without dead ends: 19088 [2024-10-24 02:11:45,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:45,869 INFO L432 NwaCegarLoop]: 4204 mSDtfsCounter, 4884 mSDsluCounter, 16679 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 20883 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:45,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 20883 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:11:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19088 states. [2024-10-24 02:11:46,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19088 to 14401. [2024-10-24 02:11:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 13080 states have (on average 1.6175076452599388) internal successors, (21157), 13146 states have internal predecessors, (21157), 871 states have call successors, (871), 384 states have call predecessors, (871), 448 states have return successors, (1728), 934 states have call predecessors, (1728), 871 states have call successors, (1728) [2024-10-24 02:11:46,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 23756 transitions. [2024-10-24 02:11:46,515 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 23756 transitions. Word has length 101 [2024-10-24 02:11:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:46,516 INFO L471 AbstractCegarLoop]: Abstraction has 14401 states and 23756 transitions. [2024-10-24 02:11:46,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 23756 transitions. [2024-10-24 02:11:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:46,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:46,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:46,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:11:46,524 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:46,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash 108401570, now seen corresponding path program 1 times [2024-10-24 02:11:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:46,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880306140] [2024-10-24 02:11:46,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:46,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:46,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:46,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:46,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:46,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:46,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:46,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:46,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880306140] [2024-10-24 02:11:46,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880306140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:46,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:46,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:46,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15307345] [2024-10-24 02:11:46,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:46,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:46,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:46,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:46,653 INFO L87 Difference]: Start difference. First operand 14401 states and 23756 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:50,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:50,462 INFO L93 Difference]: Finished difference Result 47294 states and 77674 transitions. [2024-10-24 02:11:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:50,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:50,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:50,721 INFO L225 Difference]: With dead ends: 47294 [2024-10-24 02:11:50,721 INFO L226 Difference]: Without dead ends: 35028 [2024-10-24 02:11:50,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:50,815 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4775 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:50,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 20963 Invalid, 2229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:11:50,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35028 states. [2024-10-24 02:11:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35028 to 26661. [2024-10-24 02:11:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26661 states, 24092 states have (on average 1.596422048812884) internal successors, (38461), 24222 states have internal predecessors, (38461), 1671 states have call successors, (1671), 768 states have call predecessors, (1671), 896 states have return successors, (4114), 1798 states have call predecessors, (4114), 1671 states have call successors, (4114) [2024-10-24 02:11:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26661 states to 26661 states and 44246 transitions. [2024-10-24 02:11:52,220 INFO L78 Accepts]: Start accepts. Automaton has 26661 states and 44246 transitions. Word has length 101 [2024-10-24 02:11:52,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:52,221 INFO L471 AbstractCegarLoop]: Abstraction has 26661 states and 44246 transitions. [2024-10-24 02:11:52,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:52,221 INFO L276 IsEmpty]: Start isEmpty. Operand 26661 states and 44246 transitions. [2024-10-24 02:11:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:11:52,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:52,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:52,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:11:52,237 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:52,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1842506020, now seen corresponding path program 1 times [2024-10-24 02:11:52,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:52,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851613039] [2024-10-24 02:11:52,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:52,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:11:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:11:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:11:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:11:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:52,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:52,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851613039] [2024-10-24 02:11:52,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851613039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:52,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:52,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:52,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671229184] [2024-10-24 02:11:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:52,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:52,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:52,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:52,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:52,394 INFO L87 Difference]: Start difference. First operand 26661 states and 44246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:11:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:56,995 INFO L93 Difference]: Finished difference Result 90474 states and 150842 transitions. [2024-10-24 02:11:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:56,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:11:56,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:57,353 INFO L225 Difference]: With dead ends: 90474 [2024-10-24 02:11:57,353 INFO L226 Difference]: Without dead ends: 65948 [2024-10-24 02:11:57,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:57,420 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4805 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4825 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:57,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4825 Valid, 20963 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:11:57,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65948 states. [2024-10-24 02:12:00,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65948 to 51181. [2024-10-24 02:12:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51181 states, 46180 states have (on average 1.585036812472932) internal successors, (73197), 46438 states have internal predecessors, (73197), 3207 states have call successors, (3207), 1536 states have call predecessors, (3207), 1792 states have return successors, (10280), 3462 states have call predecessors, (10280), 3207 states have call successors, (10280) [2024-10-24 02:12:00,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51181 states to 51181 states and 86684 transitions. [2024-10-24 02:12:00,558 INFO L78 Accepts]: Start accepts. Automaton has 51181 states and 86684 transitions. Word has length 101 [2024-10-24 02:12:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:12:00,559 INFO L471 AbstractCegarLoop]: Abstraction has 51181 states and 86684 transitions. [2024-10-24 02:12:00,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:12:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand 51181 states and 86684 transitions. [2024-10-24 02:12:00,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:12:00,589 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:12:00,589 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:12:00,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:12:00,590 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:12:00,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:12:00,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1565238430, now seen corresponding path program 1 times [2024-10-24 02:12:00,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:12:00,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205060772] [2024-10-24 02:12:00,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:12:00,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:12:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:00,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:12:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:00,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:12:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:00,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:12:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:00,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:12:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:00,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:12:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:00,741 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 02:12:00,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:12:00,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205060772] [2024-10-24 02:12:00,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205060772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:12:00,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:12:00,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:12:00,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679763598] [2024-10-24 02:12:00,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:12:00,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:12:00,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:12:00,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:12:00,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:12:00,744 INFO L87 Difference]: Start difference. First operand 51181 states and 86684 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:12:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:12:10,563 INFO L93 Difference]: Finished difference Result 174914 states and 299682 transitions. [2024-10-24 02:12:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:12:10,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-10-24 02:12:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:12:11,404 INFO L225 Difference]: With dead ends: 174914 [2024-10-24 02:12:11,405 INFO L226 Difference]: Without dead ends: 125868 [2024-10-24 02:12:11,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:12:11,534 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4756 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:12:11,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 20963 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:12:11,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125868 states. [2024-10-24 02:12:18,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125868 to 100221. [2024-10-24 02:12:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100221 states, 90484 states have (on average 1.5795610273639538) internal successors, (142925), 90998 states have internal predecessors, (142925), 6151 states have call successors, (6151), 3072 states have call predecessors, (6151), 3584 states have return successors, (26858), 6662 states have call predecessors, (26858), 6151 states have call successors, (26858) [2024-10-24 02:12:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100221 states to 100221 states and 175934 transitions. [2024-10-24 02:12:19,589 INFO L78 Accepts]: Start accepts. Automaton has 100221 states and 175934 transitions. Word has length 101 [2024-10-24 02:12:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:12:19,593 INFO L471 AbstractCegarLoop]: Abstraction has 100221 states and 175934 transitions. [2024-10-24 02:12:19,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:12:19,594 INFO L276 IsEmpty]: Start isEmpty. Operand 100221 states and 175934 transitions. [2024-10-24 02:12:19,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 02:12:19,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:12:19,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:12:19,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:12:19,729 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:12:19,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:12:19,730 INFO L85 PathProgramCache]: Analyzing trace with hash 818686308, now seen corresponding path program 1 times [2024-10-24 02:12:19,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:12:19,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197142527] [2024-10-24 02:12:19,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:12:19,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:12:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:19,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:12:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:19,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:12:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:19,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:12:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:19,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:12:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:19,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:12:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:19,923 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 02:12:19,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:12:19,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197142527] [2024-10-24 02:12:19,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197142527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:12:19,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:12:19,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:12:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997760117] [2024-10-24 02:12:19,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:12:19,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:12:19,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:12:19,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:12:19,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:12:19,925 INFO L87 Difference]: Start difference. First operand 100221 states and 175934 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)