./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_label49+token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 212f1e6cc1aae5a1223162e16d5bd8071b486da78643961fa0a66e81c45b8eae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:26:19,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:26:19,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:26:19,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:26:19,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:26:19,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:26:19,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:26:19,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:26:19,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:26:19,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:26:19,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:26:19,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:26:19,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:26:19,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:26:19,163 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:26:19,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:26:19,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:26:19,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:26:19,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:26:19,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:26:19,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:26:19,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:26:19,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:26:19,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:26:19,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:26:19,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:26:19,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:26:19,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:26:19,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:26:19,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:26:19,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:26:19,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:26:19,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:26:19,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:26:19,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:26:19,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:26:19,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:26:19,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:26:19,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:26:19,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:26:19,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:26:19,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:26:19,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 212f1e6cc1aae5a1223162e16d5bd8071b486da78643961fa0a66e81c45b8eae [2024-10-24 02:26:19,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:26:19,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:26:19,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:26:19,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:26:19,420 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:26:19,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-1.c [2024-10-24 02:26:20,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:26:21,222 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:26:21,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-1.c [2024-10-24 02:26:21,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cca92dda9/8504b61af2fd439c9a37cc98af42d0d2/FLAGb478c46b1 [2024-10-24 02:26:21,333 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cca92dda9/8504b61af2fd439c9a37cc98af42d0d2 [2024-10-24 02:26:21,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:26:21,337 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:26:21,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:26:21,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:26:21,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:26:21,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:26:21" (1/1) ... [2024-10-24 02:26:21,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666ee4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:21, skipping insertion in model container [2024-10-24 02:26:21,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:26:21" (1/1) ... [2024-10-24 02:26:21,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:26:22,697 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_label49+token_ring.07.cil-1.c[380593,380606] [2024-10-24 02:26:22,717 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_label49+token_ring.07.cil-1.c[383339,383352] [2024-10-24 02:26:22,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:26:22,900 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:26:23,456 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_label49+token_ring.07.cil-1.c[380593,380606] [2024-10-24 02:26:23,460 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_label49+token_ring.07.cil-1.c[383339,383352] [2024-10-24 02:26:23,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:26:23,526 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:26:23,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23 WrapperNode [2024-10-24 02:26:23,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:26:23,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:26:23,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:26:23,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:26:23,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:23,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:23,975 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12933 [2024-10-24 02:26:23,976 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:26:23,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:26:23,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:26:23,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:26:23,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:23,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,137 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 02:26:24,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:26:24,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:26:24,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:26:24,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:26:24,470 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (1/1) ... [2024-10-24 02:26:24,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:26:24,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:26:24,509 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 02:26:24,515 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 02:26:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:26:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:26:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:26:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:26:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:26:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:26:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:26:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:26:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:26:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:26:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:26:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:26:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:26:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:26:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:26:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:26:24,691 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:26:24,694 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:26:31,223 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-10-24 02:26:31,223 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:26:31,322 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:26:31,325 INFO L314 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-24 02:26:31,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:26:31 BoogieIcfgContainer [2024-10-24 02:26:31,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:26:31,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:26:31,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:26:31,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:26:31,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:26:21" (1/3) ... [2024-10-24 02:26:31,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1176125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:26:31, skipping insertion in model container [2024-10-24 02:26:31,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:26:23" (2/3) ... [2024-10-24 02:26:31,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1176125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:26:31, skipping insertion in model container [2024-10-24 02:26:31,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:26:31" (3/3) ... [2024-10-24 02:26:31,333 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.07.cil-1.c [2024-10-24 02:26:31,346 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:26:31,347 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:26:31,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:26:31,448 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;@7ca6399, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:26:31,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:26:31,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 2356 states, 2326 states have (on average 1.880481513327601) internal successors, (4374), 2329 states have internal predecessors, (4374), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 02:26:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:31,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:31,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:31,473 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:31,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:31,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1751521651, now seen corresponding path program 1 times [2024-10-24 02:26:31,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:31,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437376891] [2024-10-24 02:26:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:31,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:31,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:31,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:31,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:31,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:31,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:31,948 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 02:26:31,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:31,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437376891] [2024-10-24 02:26:31,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437376891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:31,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:31,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:26:31,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77132337] [2024-10-24 02:26:31,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:31,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:26:31,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:26:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:26:31,989 INFO L87 Difference]: Start difference. First operand has 2356 states, 2326 states have (on average 1.880481513327601) internal successors, (4374), 2329 states have internal predecessors, (4374), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:33,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:33,073 INFO L93 Difference]: Finished difference Result 4782 states and 8954 transitions. [2024-10-24 02:26:33,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:26:33,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:33,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:33,095 INFO L225 Difference]: With dead ends: 4782 [2024-10-24 02:26:33,095 INFO L226 Difference]: Without dead ends: 2432 [2024-10-24 02:26:33,104 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 02:26:33,107 INFO L432 NwaCegarLoop]: 4162 mSDtfsCounter, 618 mSDsluCounter, 12094 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 16256 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:33,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 16256 Invalid, 726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:26:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-10-24 02:26:33,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2352. [2024-10-24 02:26:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2323 states have (on average 1.8441670253981919) internal successors, (4284), 2325 states have internal predecessors, (4284), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 02:26:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 4326 transitions. [2024-10-24 02:26:33,236 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 4326 transitions. Word has length 111 [2024-10-24 02:26:33,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:33,239 INFO L471 AbstractCegarLoop]: Abstraction has 2352 states and 4326 transitions. [2024-10-24 02:26:33,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 4326 transitions. [2024-10-24 02:26:33,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:33,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:33,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:33,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:26:33,243 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:33,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:33,244 INFO L85 PathProgramCache]: Analyzing trace with hash -637042379, now seen corresponding path program 1 times [2024-10-24 02:26:33,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:33,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683624135] [2024-10-24 02:26:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:33,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:33,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:33,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:33,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:33,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:33,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:33,473 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 02:26:33,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:33,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683624135] [2024-10-24 02:26:33,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683624135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:33,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:33,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:26:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153228838] [2024-10-24 02:26:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:33,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:26:33,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:33,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:26:33,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:26:33,482 INFO L87 Difference]: Start difference. First operand 2352 states and 4326 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:35,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:35,106 INFO L93 Difference]: Finished difference Result 2957 states and 5322 transitions. [2024-10-24 02:26:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:26:35,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:35,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:35,117 INFO L225 Difference]: With dead ends: 2957 [2024-10-24 02:26:35,117 INFO L226 Difference]: Without dead ends: 2739 [2024-10-24 02:26:35,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:26:35,120 INFO L432 NwaCegarLoop]: 4137 mSDtfsCounter, 4889 mSDsluCounter, 12392 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 16529 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:35,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4903 Valid, 16529 Invalid, 1541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:26:35,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2024-10-24 02:26:35,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2580. [2024-10-24 02:26:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2528 states have (on average 1.8263449367088607) internal successors, (4617), 2531 states have internal predecessors, (4617), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-10-24 02:26:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 4694 transitions. [2024-10-24 02:26:35,184 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 4694 transitions. Word has length 111 [2024-10-24 02:26:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:35,184 INFO L471 AbstractCegarLoop]: Abstraction has 2580 states and 4694 transitions. [2024-10-24 02:26:35,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 4694 transitions. [2024-10-24 02:26:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:35,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:35,187 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:35,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:26:35,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:35,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash 641956281, now seen corresponding path program 1 times [2024-10-24 02:26:35,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066498279] [2024-10-24 02:26:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:35,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:35,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:35,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:35,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:35,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:35,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:35,384 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 02:26:35,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:35,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066498279] [2024-10-24 02:26:35,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066498279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:35,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:35,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:35,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438948584] [2024-10-24 02:26:35,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:35,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:35,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:35,390 INFO L87 Difference]: Start difference. First operand 2580 states and 4694 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:37,504 INFO L93 Difference]: Finished difference Result 3502 states and 6208 transitions. [2024-10-24 02:26:37,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:26:37,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:37,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:37,520 INFO L225 Difference]: With dead ends: 3502 [2024-10-24 02:26:37,520 INFO L226 Difference]: Without dead ends: 3056 [2024-10-24 02:26:37,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:26:37,525 INFO L432 NwaCegarLoop]: 4270 mSDtfsCounter, 4904 mSDsluCounter, 16836 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:37,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 21106 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:26:37,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2024-10-24 02:26:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2791. [2024-10-24 02:26:37,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2716 states have (on average 1.8100147275405007) internal successors, (4916), 2720 states have internal predecessors, (4916), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-10-24 02:26:37,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 5027 transitions. [2024-10-24 02:26:37,604 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 5027 transitions. Word has length 111 [2024-10-24 02:26:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:37,605 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 5027 transitions. [2024-10-24 02:26:37,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 5027 transitions. [2024-10-24 02:26:37,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:37,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:37,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:37,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:26:37,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:37,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash -977018633, now seen corresponding path program 1 times [2024-10-24 02:26:37,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:37,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118175481] [2024-10-24 02:26:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:37,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:37,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:37,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:37,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:37,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:37,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:37,832 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 02:26:37,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:37,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118175481] [2024-10-24 02:26:37,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118175481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:37,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:37,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:37,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410995627] [2024-10-24 02:26:37,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:37,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:37,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:37,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:37,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:37,834 INFO L87 Difference]: Start difference. First operand 2791 states and 5027 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:39,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:39,615 INFO L93 Difference]: Finished difference Result 4300 states and 7499 transitions. [2024-10-24 02:26:39,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:26:39,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:39,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:39,631 INFO L225 Difference]: With dead ends: 4300 [2024-10-24 02:26:39,631 INFO L226 Difference]: Without dead ends: 3643 [2024-10-24 02:26:39,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:26:39,638 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 4902 mSDsluCounter, 16836 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 21104 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:39,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 21104 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:26:39,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2024-10-24 02:26:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3214. [2024-10-24 02:26:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7830585192369868) internal successors, (5515), 3099 states have internal predecessors, (5515), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:26:39,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5698 transitions. [2024-10-24 02:26:39,743 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5698 transitions. Word has length 111 [2024-10-24 02:26:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:39,743 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5698 transitions. [2024-10-24 02:26:39,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:39,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5698 transitions. [2024-10-24 02:26:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:39,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:39,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:39,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:26:39,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:39,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:39,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1860527623, now seen corresponding path program 1 times [2024-10-24 02:26:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:39,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128735725] [2024-10-24 02:26:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:39,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:39,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:39,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:39,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:40,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:40,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:26:40,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:40,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128735725] [2024-10-24 02:26:40,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128735725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:40,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:40,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:40,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654838744] [2024-10-24 02:26:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:40,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:40,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:40,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:40,024 INFO L87 Difference]: Start difference. First operand 3214 states and 5698 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:41,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:41,015 INFO L93 Difference]: Finished difference Result 4713 states and 8163 transitions. [2024-10-24 02:26:41,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:26:41,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:41,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:41,029 INFO L225 Difference]: With dead ends: 4713 [2024-10-24 02:26:41,030 INFO L226 Difference]: Without dead ends: 3633 [2024-10-24 02:26:41,034 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 02:26:41,035 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4645 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4660 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:41,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4660 Valid, 20458 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:26:41,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2024-10-24 02:26:41,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3214. [2024-10-24 02:26:41,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7814419657290657) internal successors, (5510), 3099 states have internal predecessors, (5510), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:26:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5693 transitions. [2024-10-24 02:26:41,137 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5693 transitions. Word has length 111 [2024-10-24 02:26:41,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:41,137 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5693 transitions. [2024-10-24 02:26:41,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5693 transitions. [2024-10-24 02:26:41,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:41,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:41,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:41,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:26:41,139 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:41,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:41,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1889027913, now seen corresponding path program 1 times [2024-10-24 02:26:41,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:41,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965953601] [2024-10-24 02:26:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:41,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:41,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:41,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:41,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:41,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:41,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:41,295 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 02:26:41,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:41,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965953601] [2024-10-24 02:26:41,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965953601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:41,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:41,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:41,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729630720] [2024-10-24 02:26:41,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:41,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:41,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:41,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:41,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:41,301 INFO L87 Difference]: Start difference. First operand 3214 states and 5693 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:42,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:42,221 INFO L93 Difference]: Finished difference Result 4707 states and 8137 transitions. [2024-10-24 02:26:42,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:26:42,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:42,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:42,233 INFO L225 Difference]: With dead ends: 4707 [2024-10-24 02:26:42,234 INFO L226 Difference]: Without dead ends: 3627 [2024-10-24 02:26:42,237 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 02:26:42,237 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4740 mSDsluCounter, 12269 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4755 SdHoareTripleChecker+Valid, 16393 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:42,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4755 Valid, 16393 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:26:42,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2024-10-24 02:26:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3214. [2024-10-24 02:26:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7798254122211445) internal successors, (5505), 3099 states have internal predecessors, (5505), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:26:42,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5688 transitions. [2024-10-24 02:26:42,378 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5688 transitions. Word has length 111 [2024-10-24 02:26:42,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:42,379 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5688 transitions. [2024-10-24 02:26:42,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5688 transitions. [2024-10-24 02:26:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:42,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:42,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:42,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:26:42,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:42,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:42,383 INFO L85 PathProgramCache]: Analyzing trace with hash 465357369, now seen corresponding path program 1 times [2024-10-24 02:26:42,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:42,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532622228] [2024-10-24 02:26:42,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:42,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:42,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:42,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:42,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:42,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:42,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:42,592 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 02:26:42,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532622228] [2024-10-24 02:26:42,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532622228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:42,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:42,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:42,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053735750] [2024-10-24 02:26:42,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:42,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:42,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:42,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:42,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:42,595 INFO L87 Difference]: Start difference. First operand 3214 states and 5688 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:43,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:43,701 INFO L93 Difference]: Finished difference Result 4700 states and 8109 transitions. [2024-10-24 02:26:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:26:43,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:43,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:43,718 INFO L225 Difference]: With dead ends: 4700 [2024-10-24 02:26:43,718 INFO L226 Difference]: Without dead ends: 3620 [2024-10-24 02:26:43,723 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 02:26:43,724 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4646 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4661 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:43,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4661 Valid, 20458 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:26:43,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2024-10-24 02:26:43,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 3214. [2024-10-24 02:26:43,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7782088587132234) internal successors, (5500), 3099 states have internal predecessors, (5500), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:26:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5683 transitions. [2024-10-24 02:26:43,869 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5683 transitions. Word has length 111 [2024-10-24 02:26:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:43,870 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5683 transitions. [2024-10-24 02:26:43,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5683 transitions. [2024-10-24 02:26:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:43,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:43,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:43,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:26:43,874 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:43,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:43,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1952546697, now seen corresponding path program 1 times [2024-10-24 02:26:43,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:43,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887685729] [2024-10-24 02:26:43,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:43,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:43,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:43,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:44,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:44,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:44,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:44,052 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 02:26:44,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887685729] [2024-10-24 02:26:44,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887685729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:44,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:44,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:44,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257299582] [2024-10-24 02:26:44,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:44,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:44,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:44,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:44,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:44,055 INFO L87 Difference]: Start difference. First operand 3214 states and 5683 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:44,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:44,973 INFO L93 Difference]: Finished difference Result 4688 states and 8071 transitions. [2024-10-24 02:26:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:26:44,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:44,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:44,999 INFO L225 Difference]: With dead ends: 4688 [2024-10-24 02:26:44,999 INFO L226 Difference]: Without dead ends: 3608 [2024-10-24 02:26:45,002 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 02:26:45,003 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4643 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:45,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 20458 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:26:45,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2024-10-24 02:26:45,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3214. [2024-10-24 02:26:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7765923052053023) internal successors, (5495), 3099 states have internal predecessors, (5495), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-10-24 02:26:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5678 transitions. [2024-10-24 02:26:45,088 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5678 transitions. Word has length 111 [2024-10-24 02:26:45,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:45,088 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5678 transitions. [2024-10-24 02:26:45,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5678 transitions. [2024-10-24 02:26:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:45,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:45,090 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:45,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:26:45,090 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:45,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1347726901, now seen corresponding path program 1 times [2024-10-24 02:26:45,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:45,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731753420] [2024-10-24 02:26:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:45,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:45,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:45,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:45,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:45,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:45,257 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 02:26:45,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:45,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731753420] [2024-10-24 02:26:45,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731753420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:45,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:45,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:45,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593136892] [2024-10-24 02:26:45,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:45,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:45,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:45,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:45,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:45,259 INFO L87 Difference]: Start difference. First operand 3214 states and 5678 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:47,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:47,178 INFO L93 Difference]: Finished difference Result 6166 states and 10402 transitions. [2024-10-24 02:26:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:26:47,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:47,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:47,194 INFO L225 Difference]: With dead ends: 6166 [2024-10-24 02:26:47,194 INFO L226 Difference]: Without dead ends: 5086 [2024-10-24 02:26:47,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:26:47,201 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 5132 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:47,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 21097 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:26:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2024-10-24 02:26:47,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 4075. [2024-10-24 02:26:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3866 states have (on average 1.734092084842214) internal successors, (6704), 3876 states have internal predecessors, (6704), 145 states have call successors, (145), 54 states have call predecessors, (145), 62 states have return successors, (180), 152 states have call predecessors, (180), 145 states have call successors, (180) [2024-10-24 02:26:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7029 transitions. [2024-10-24 02:26:47,340 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7029 transitions. Word has length 111 [2024-10-24 02:26:47,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:47,341 INFO L471 AbstractCegarLoop]: Abstraction has 4075 states and 7029 transitions. [2024-10-24 02:26:47,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7029 transitions. [2024-10-24 02:26:47,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:47,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:47,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:47,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:26:47,343 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:47,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:47,344 INFO L85 PathProgramCache]: Analyzing trace with hash 761450679, now seen corresponding path program 1 times [2024-10-24 02:26:47,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:47,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720363745] [2024-10-24 02:26:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:47,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:47,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:47,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:47,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:47,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:47,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:47,498 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 02:26:47,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:47,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720363745] [2024-10-24 02:26:47,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720363745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:47,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:47,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:47,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254656939] [2024-10-24 02:26:47,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:47,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:47,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:47,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:47,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:47,501 INFO L87 Difference]: Start difference. First operand 4075 states and 7029 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:49,521 INFO L93 Difference]: Finished difference Result 9483 states and 15673 transitions. [2024-10-24 02:26:49,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:26:49,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:49,541 INFO L225 Difference]: With dead ends: 9483 [2024-10-24 02:26:49,542 INFO L226 Difference]: Without dead ends: 7542 [2024-10-24 02:26:49,549 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 02:26:49,549 INFO L432 NwaCegarLoop]: 4265 mSDtfsCounter, 4927 mSDsluCounter, 16828 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 21093 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:49,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4940 Valid, 21093 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:26:49,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7542 states. [2024-10-24 02:26:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7542 to 5746. [2024-10-24 02:26:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5365 states have (on average 1.6857409133271202) internal successors, (9044), 5383 states have internal predecessors, (9044), 261 states have call successors, (261), 102 states have call predecessors, (261), 118 states have return successors, (358), 276 states have call predecessors, (358), 261 states have call successors, (358) [2024-10-24 02:26:49,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 9663 transitions. [2024-10-24 02:26:49,764 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 9663 transitions. Word has length 111 [2024-10-24 02:26:49,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:49,765 INFO L471 AbstractCegarLoop]: Abstraction has 5746 states and 9663 transitions. [2024-10-24 02:26:49,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 9663 transitions. [2024-10-24 02:26:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:49,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:49,768 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:49,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:26:49,769 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:49,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1197124107, now seen corresponding path program 1 times [2024-10-24 02:26:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:49,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930841973] [2024-10-24 02:26:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:49,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:49,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:49,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:49,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:49,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:49,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:49,916 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 02:26:49,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:49,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930841973] [2024-10-24 02:26:49,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930841973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:49,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:49,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:49,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428934951] [2024-10-24 02:26:49,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:49,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:49,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:49,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:49,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:49,918 INFO L87 Difference]: Start difference. First operand 5746 states and 9663 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:52,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:52,031 INFO L93 Difference]: Finished difference Result 15876 states and 25869 transitions. [2024-10-24 02:26:52,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:26:52,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:52,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:52,068 INFO L225 Difference]: With dead ends: 15876 [2024-10-24 02:26:52,068 INFO L226 Difference]: Without dead ends: 12264 [2024-10-24 02:26:52,081 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 02:26:52,081 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 5060 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5082 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:52,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5082 Valid, 21097 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:26:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12264 states. [2024-10-24 02:26:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12264 to 9127. [2024-10-24 02:26:52,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9127 states, 8410 states have (on average 1.641141498216409) internal successors, (13802), 8444 states have internal predecessors, (13802), 485 states have call successors, (485), 198 states have call predecessors, (485), 230 states have return successors, (760), 516 states have call predecessors, (760), 485 states have call successors, (760) [2024-10-24 02:26:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9127 states to 9127 states and 15047 transitions. [2024-10-24 02:26:52,623 INFO L78 Accepts]: Start accepts. Automaton has 9127 states and 15047 transitions. Word has length 111 [2024-10-24 02:26:52,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:52,624 INFO L471 AbstractCegarLoop]: Abstraction has 9127 states and 15047 transitions. [2024-10-24 02:26:52,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:52,624 INFO L276 IsEmpty]: Start isEmpty. Operand 9127 states and 15047 transitions. [2024-10-24 02:26:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:52,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:52,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:52,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:26:52,631 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:52,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:52,631 INFO L85 PathProgramCache]: Analyzing trace with hash 679358711, now seen corresponding path program 1 times [2024-10-24 02:26:52,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:52,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072210194] [2024-10-24 02:26:52,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:52,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:52,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:52,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:52,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:52,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:52,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:52,795 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 02:26:52,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:52,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072210194] [2024-10-24 02:26:52,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072210194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:52,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:52,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:52,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292708948] [2024-10-24 02:26:52,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:52,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:52,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:52,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:52,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:52,797 INFO L87 Difference]: Start difference. First operand 9127 states and 15047 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:55,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:26:55,551 INFO L93 Difference]: Finished difference Result 28527 states and 46239 transitions. [2024-10-24 02:26:55,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:26:55,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:26:55,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:26:55,621 INFO L225 Difference]: With dead ends: 28527 [2024-10-24 02:26:55,621 INFO L226 Difference]: Without dead ends: 21534 [2024-10-24 02:26:55,641 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 02:26:55,643 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 5024 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:26:55,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 21097 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:26:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21534 states. [2024-10-24 02:26:56,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21534 to 15888. [2024-10-24 02:26:56,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15888 states, 14515 states have (on average 1.608542886668963) internal successors, (23348), 14581 states have internal predecessors, (23348), 917 states have call successors, (917), 390 states have call predecessors, (917), 454 states have return successors, (1710), 980 states have call predecessors, (1710), 917 states have call successors, (1710) [2024-10-24 02:26:56,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15888 states to 15888 states and 25975 transitions. [2024-10-24 02:26:56,545 INFO L78 Accepts]: Start accepts. Automaton has 15888 states and 25975 transitions. Word has length 111 [2024-10-24 02:26:56,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:26:56,546 INFO L471 AbstractCegarLoop]: Abstraction has 15888 states and 25975 transitions. [2024-10-24 02:26:56,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:26:56,546 INFO L276 IsEmpty]: Start isEmpty. Operand 15888 states and 25975 transitions. [2024-10-24 02:26:56,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:26:56,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:26:56,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:26:56,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:26:56,554 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:26:56,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:26:56,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1199772235, now seen corresponding path program 1 times [2024-10-24 02:26:56,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:26:56,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178382083] [2024-10-24 02:26:56,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:26:56,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:26:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:56,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:26:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:56,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:26:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:56,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:26:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:56,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:26:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:56,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:26:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:26:56,700 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 02:26:56,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:26:56,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178382083] [2024-10-24 02:26:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178382083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:26:56,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:26:56,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:26:56,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807270757] [2024-10-24 02:26:56,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:26:56,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:26:56,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:26:56,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:26:56,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:26:56,702 INFO L87 Difference]: Start difference. First operand 15888 states and 25975 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:27:00,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:27:00,495 INFO L93 Difference]: Finished difference Result 53350 states and 86797 transitions. [2024-10-24 02:27:00,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:27:00,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:27:00,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:27:00,624 INFO L225 Difference]: With dead ends: 53350 [2024-10-24 02:27:00,625 INFO L226 Difference]: Without dead ends: 39596 [2024-10-24 02:27:00,663 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 02:27:00,663 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4898 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:27:00,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4911 Valid, 21097 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:27:00,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39596 states. [2024-10-24 02:27:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39596 to 29409. [2024-10-24 02:27:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29409 states, 26756 states have (on average 1.5885035132306773) internal successors, (42502), 26886 states have internal predecessors, (42502), 1749 states have call successors, (1749), 774 states have call predecessors, (1749), 902 states have return successors, (4064), 1876 states have call predecessors, (4064), 1749 states have call successors, (4064) [2024-10-24 02:27:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29409 states to 29409 states and 48315 transitions. [2024-10-24 02:27:02,262 INFO L78 Accepts]: Start accepts. Automaton has 29409 states and 48315 transitions. Word has length 111 [2024-10-24 02:27:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:27:02,262 INFO L471 AbstractCegarLoop]: Abstraction has 29409 states and 48315 transitions. [2024-10-24 02:27:02,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:27:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 29409 states and 48315 transitions. [2024-10-24 02:27:02,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:27:02,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:27:02,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:27:02,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:27:02,279 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:27:02,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:27:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash 125083959, now seen corresponding path program 1 times [2024-10-24 02:27:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:27:02,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893339959] [2024-10-24 02:27:02,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:27:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:27:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:02,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:27:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:02,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:27:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:02,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:27:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:02,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:27:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:02,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:27:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:02,485 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 02:27:02,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:27:02,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893339959] [2024-10-24 02:27:02,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893339959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:27:02,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:27:02,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:27:02,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218041686] [2024-10-24 02:27:02,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:27:02,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:27:02,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:27:02,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:27:02,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:27:02,486 INFO L87 Difference]: Start difference. First operand 29409 states and 48315 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:27:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:27:08,146 INFO L93 Difference]: Finished difference Result 102037 states and 168195 transitions. [2024-10-24 02:27:08,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:27:08,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:27:08,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:27:08,378 INFO L225 Difference]: With dead ends: 102037 [2024-10-24 02:27:08,378 INFO L226 Difference]: Without dead ends: 74762 [2024-10-24 02:27:08,463 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 02:27:08,464 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4958 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4980 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:27:08,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4980 Valid, 21097 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:27:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74762 states. [2024-10-24 02:27:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74762 to 56450. [2024-10-24 02:27:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56450 states, 51301 states have (on average 1.57766905128555) internal successors, (80936), 51559 states have internal predecessors, (80936), 3349 states have call successors, (3349), 1542 states have call predecessors, (3349), 1798 states have return successors, (10166), 3604 states have call predecessors, (10166), 3349 states have call successors, (10166) [2024-10-24 02:27:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56450 states to 56450 states and 94451 transitions. [2024-10-24 02:27:12,831 INFO L78 Accepts]: Start accepts. Automaton has 56450 states and 94451 transitions. Word has length 111 [2024-10-24 02:27:12,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:27:12,831 INFO L471 AbstractCegarLoop]: Abstraction has 56450 states and 94451 transitions. [2024-10-24 02:27:12,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:27:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 56450 states and 94451 transitions. [2024-10-24 02:27:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 02:27:12,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:27:12,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:27:12,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:27:12,861 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:27:12,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:27:12,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1691841909, now seen corresponding path program 1 times [2024-10-24 02:27:12,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:27:12,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107250488] [2024-10-24 02:27:12,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:27:12,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:27:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:12,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:27:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:12,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 02:27:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:12,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 02:27:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:12,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 02:27:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:12,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 02:27:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:27:12,978 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 02:27:12,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:27:12,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107250488] [2024-10-24 02:27:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107250488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:27:12,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:27:12,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:27:12,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383249790] [2024-10-24 02:27:12,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:27:12,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:27:12,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:27:12,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:27:12,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:27:12,980 INFO L87 Difference]: Start difference. First operand 56450 states and 94451 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:27:23,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:27:23,325 INFO L93 Difference]: Finished difference Result 194162 states and 328373 transitions. [2024-10-24 02:27:23,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:27:23,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2024-10-24 02:27:23,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:27:24,191 INFO L225 Difference]: With dead ends: 194162 [2024-10-24 02:27:24,192 INFO L226 Difference]: Without dead ends: 139846 [2024-10-24 02:27:24,371 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 02:27:24,371 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4880 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:27:24,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4902 Valid, 21097 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:27:24,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139846 states.