./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.12.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3cf66723094c16b3ec081bddaed276332b3b239b1c88ec16db8fa6791967fb2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:22:54,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:22:55,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:22:55,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:22:55,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:22:55,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:22:55,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:22:55,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:22:55,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:22:55,103 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:22:55,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:22:55,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:22:55,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:22:55,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:22:55,107 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:22:55,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:22:55,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:22:55,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:22:55,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:22:55,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:22:55,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:22:55,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:22:55,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:22:55,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:22:55,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:22:55,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:22:55,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:22:55,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:22:55,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:22:55,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:22:55,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:22:55,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:22:55,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:22:55,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:22:55,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:22:55,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:22:55,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:22:55,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:22:55,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:22:55,121 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:22:55,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:22:55,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:22:55,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cf66723094c16b3ec081bddaed276332b3b239b1c88ec16db8fa6791967fb2 [2024-11-22 03:22:55,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:22:55,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:22:55,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:22:55,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:22:55,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:22:55,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label44+token_ring.12.cil-2.c [2024-11-22 03:22:56,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:22:57,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:22:57,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.12.cil-2.c [2024-11-22 03:22:57,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7def3cdb/152b116e3df04ca3a04dbcd6b5f2c0d7/FLAG25003af77 [2024-11-22 03:22:57,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7def3cdb/152b116e3df04ca3a04dbcd6b5f2c0d7 [2024-11-22 03:22:57,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:22:57,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:22:57,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:22:57,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:22:57,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:22:57,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:22:57" (1/1) ... [2024-11-22 03:22:57,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ce1b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:22:57, skipping insertion in model container [2024-11-22 03:22:57,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:22:57" (1/1) ... [2024-11-22 03:22:57,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:22:59,630 WARN L250 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_label44+token_ring.12.cil-2.c[377340,377353] [2024-11-22 03:22:59,667 WARN L250 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_label44+token_ring.12.cil-2.c[383339,383352] [2024-11-22 03:22:59,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:22:59,945 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:23:00,723 WARN L250 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_label44+token_ring.12.cil-2.c[377340,377353] [2024-11-22 03:23:00,732 WARN L250 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_label44+token_ring.12.cil-2.c[383339,383352] [2024-11-22 03:23:00,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:23:00,871 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:23:00,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00 WrapperNode [2024-11-22 03:23:00,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:23:00,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:23:00,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:23:00,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:23:00,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:00,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:01,371 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13233 [2024-11-22 03:23:01,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:23:01,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:23:01,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:23:01,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:23:01,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:01,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:01,498 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:01,675 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]. [2024-11-22 03:23:01,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:01,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:02,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:02,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:02,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:02,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:02,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:23:02,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:23:02,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:23:02,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:23:02,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (1/1) ... [2024-11-22 03:23:02,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:23:02,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:23:02,299 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) [2024-11-22 03:23:02,306 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 [2024-11-22 03:23:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:23:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:23:02,352 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:23:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:23:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:23:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:23:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:23:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:23:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:23:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:23:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:23:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:23:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:23:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:23:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:23:02,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:23:02,499 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:23:02,501 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:23:10,785 INFO L? ?]: Removed 1755 outVars from TransFormulas that were not future-live. [2024-11-22 03:23:10,786 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:23:10,854 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:23:10,854 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-22 03:23:10,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:23:10 BoogieIcfgContainer [2024-11-22 03:23:10,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:23:10,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:23:10,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:23:10,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:23:10,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:22:57" (1/3) ... [2024-11-22 03:23:10,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e66e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:23:10, skipping insertion in model container [2024-11-22 03:23:10,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:00" (2/3) ... [2024-11-22 03:23:10,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e66e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:23:10, skipping insertion in model container [2024-11-22 03:23:10,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:23:10" (3/3) ... [2024-11-22 03:23:10,864 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.12.cil-2.c [2024-11-22 03:23:10,880 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:23:10,880 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:23:11,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:23:11,012 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;@529fa5b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:23:11,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:23:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 2578 states, 2543 states have (on average 1.8387731026346834) internal successors, (4676), 2546 states have internal predecessors, (4676), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 03:23:11,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:11,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:11,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:11,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:11,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:11,057 INFO L85 PathProgramCache]: Analyzing trace with hash -80490959, now seen corresponding path program 1 times [2024-11-22 03:23:11,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:11,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964293726] [2024-11-22 03:23:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:11,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:11,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:11,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964293726] [2024-11-22 03:23:11,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964293726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:11,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:23:11,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829783954] [2024-11-22 03:23:11,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:11,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:23:11,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:11,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:23:11,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:23:11,629 INFO L87 Difference]: Start difference. First operand has 2578 states, 2543 states have (on average 1.8387731026346834) internal successors, (4676), 2546 states have internal predecessors, (4676), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:11,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:11,851 INFO L93 Difference]: Finished difference Result 5150 states and 9445 transitions. [2024-11-22 03:23:11,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:23:11,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 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 178 [2024-11-22 03:23:11,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:11,891 INFO L225 Difference]: With dead ends: 5150 [2024-11-22 03:23:11,891 INFO L226 Difference]: Without dead ends: 2511 [2024-11-22 03:23:11,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:23:11,907 INFO L432 NwaCegarLoop]: 4633 mSDtfsCounter, 606 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 8655 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:11,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 8655 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:23:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-22 03:23:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2511. [2024-11-22 03:23:12,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2477 states have (on average 1.8219620508679855) internal successors, (4513), 2479 states have internal predecessors, (4513), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 03:23:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4565 transitions. [2024-11-22 03:23:12,069 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4565 transitions. Word has length 178 [2024-11-22 03:23:12,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:12,071 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4565 transitions. [2024-11-22 03:23:12,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:12,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4565 transitions. [2024-11-22 03:23:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:12,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:12,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:12,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:23:12,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:12,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash -170551249, now seen corresponding path program 1 times [2024-11-22 03:23:12,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:12,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935320919] [2024-11-22 03:23:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:12,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:12,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:12,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935320919] [2024-11-22 03:23:12,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935320919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:12,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:12,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:23:12,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625088933] [2024-11-22 03:23:12,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:12,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:23:12,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:12,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:23:12,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:23:12,314 INFO L87 Difference]: Start difference. First operand 2511 states and 4565 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:12,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:12,400 INFO L93 Difference]: Finished difference Result 2886 states and 5147 transitions. [2024-11-22 03:23:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:23:12,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 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 178 [2024-11-22 03:23:12,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:12,416 INFO L225 Difference]: With dead ends: 2886 [2024-11-22 03:23:12,417 INFO L226 Difference]: Without dead ends: 2511 [2024-11-22 03:23:12,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:23:12,421 INFO L432 NwaCegarLoop]: 4563 mSDtfsCounter, 592 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 8521 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:12,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 8521 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:23:12,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-22 03:23:12,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2511. [2024-11-22 03:23:12,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2477 states have (on average 1.821558336697618) internal successors, (4512), 2479 states have internal predecessors, (4512), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 03:23:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4564 transitions. [2024-11-22 03:23:12,498 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4564 transitions. Word has length 178 [2024-11-22 03:23:12,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:12,500 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4564 transitions. [2024-11-22 03:23:12,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4564 transitions. [2024-11-22 03:23:12,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:12,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:12,506 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:12,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:23:12,507 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:12,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:12,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1574420435, now seen corresponding path program 1 times [2024-11-22 03:23:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:12,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298129824] [2024-11-22 03:23:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:12,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:12,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:12,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298129824] [2024-11-22 03:23:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298129824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:12,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:12,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:23:12,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671094898] [2024-11-22 03:23:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:12,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:23:12,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:12,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:23:12,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:23:12,796 INFO L87 Difference]: Start difference. First operand 2511 states and 4564 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:13,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:13,622 INFO L93 Difference]: Finished difference Result 3299 states and 5808 transitions. [2024-11-22 03:23:13,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:23:13,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:13,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:13,644 INFO L225 Difference]: With dead ends: 3299 [2024-11-22 03:23:13,644 INFO L226 Difference]: Without dead ends: 2929 [2024-11-22 03:23:13,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:13,651 INFO L432 NwaCegarLoop]: 4431 mSDtfsCounter, 5120 mSDsluCounter, 9131 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5140 SdHoareTripleChecker+Valid, 13562 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:13,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5140 Valid, 13562 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:23:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2024-11-22 03:23:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2900. [2024-11-22 03:23:13,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2838 states have (on average 1.7903453136011276) internal successors, (5081), 2841 states have internal predecessors, (5081), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-11-22 03:23:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 5176 transitions. [2024-11-22 03:23:13,746 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 5176 transitions. Word has length 178 [2024-11-22 03:23:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:13,747 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 5176 transitions. [2024-11-22 03:23:13,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 5176 transitions. [2024-11-22 03:23:13,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:13,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:13,750 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:13,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:23:13,751 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:13,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:13,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1844561585, now seen corresponding path program 1 times [2024-11-22 03:23:13,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:13,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183463218] [2024-11-22 03:23:13,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:13,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:14,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:14,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183463218] [2024-11-22 03:23:14,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183463218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:14,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:14,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:14,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199558664] [2024-11-22 03:23:14,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:14,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:14,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:14,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:14,014 INFO L87 Difference]: Start difference. First operand 2900 states and 5176 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:14,972 INFO L93 Difference]: Finished difference Result 4154 states and 7177 transitions. [2024-11-22 03:23:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:14,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:14,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:14,989 INFO L225 Difference]: With dead ends: 4154 [2024-11-22 03:23:14,990 INFO L226 Difference]: Without dead ends: 3395 [2024-11-22 03:23:14,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:14,999 INFO L432 NwaCegarLoop]: 4761 mSDtfsCounter, 5130 mSDsluCounter, 14352 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 19113 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:14,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5150 Valid, 19113 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 03:23:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2024-11-22 03:23:15,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3262. [2024-11-22 03:23:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3172 states have (on average 1.764186633039092) internal successors, (5596), 3176 states have internal predecessors, (5596), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (72), 69 states have call predecessors, (72), 68 states have call successors, (72) [2024-11-22 03:23:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 5736 transitions. [2024-11-22 03:23:15,293 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 5736 transitions. Word has length 178 [2024-11-22 03:23:15,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:15,293 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 5736 transitions. [2024-11-22 03:23:15,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:15,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 5736 transitions. [2024-11-22 03:23:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:15,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:15,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:15,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:23:15,298 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:15,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:15,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1233292527, now seen corresponding path program 1 times [2024-11-22 03:23:15,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:15,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651276680] [2024-11-22 03:23:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:15,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:15,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:15,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651276680] [2024-11-22 03:23:15,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651276680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:15,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:15,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358754798] [2024-11-22 03:23:15,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:15,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:15,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:15,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:15,573 INFO L87 Difference]: Start difference. First operand 3262 states and 5736 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:16,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:16,551 INFO L93 Difference]: Finished difference Result 5310 states and 8996 transitions. [2024-11-22 03:23:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:16,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:16,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:16,575 INFO L225 Difference]: With dead ends: 5310 [2024-11-22 03:23:16,576 INFO L226 Difference]: Without dead ends: 4189 [2024-11-22 03:23:16,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:16,583 INFO L432 NwaCegarLoop]: 4473 mSDtfsCounter, 5157 mSDsluCounter, 13653 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 18126 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:16,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5177 Valid, 18126 Invalid, 943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:23:16,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4189 states. [2024-11-22 03:23:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4189 to 4035. [2024-11-22 03:23:16,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4035 states, 3887 states have (on average 1.7280679187033703) internal successors, (6717), 3895 states have internal predecessors, (6717), 110 states have call successors, (110), 30 states have call predecessors, (110), 36 states have return successors, (126), 113 states have call predecessors, (126), 110 states have call successors, (126) [2024-11-22 03:23:16,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4035 states to 4035 states and 6953 transitions. [2024-11-22 03:23:16,739 INFO L78 Accepts]: Start accepts. Automaton has 4035 states and 6953 transitions. Word has length 178 [2024-11-22 03:23:16,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:16,740 INFO L471 AbstractCegarLoop]: Abstraction has 4035 states and 6953 transitions. [2024-11-22 03:23:16,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:16,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4035 states and 6953 transitions. [2024-11-22 03:23:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:16,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:16,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:16,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:23:16,745 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:16,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash -171899151, now seen corresponding path program 1 times [2024-11-22 03:23:16,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:16,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384660445] [2024-11-22 03:23:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:16,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:16,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:16,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384660445] [2024-11-22 03:23:16,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384660445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:16,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:16,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:16,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718255580] [2024-11-22 03:23:16,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:16,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:16,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:16,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:16,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:16,970 INFO L87 Difference]: Start difference. First operand 4035 states and 6953 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:18,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:18,128 INFO L93 Difference]: Finished difference Result 7813 states and 13019 transitions. [2024-11-22 03:23:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:18,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:18,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:18,154 INFO L225 Difference]: With dead ends: 7813 [2024-11-22 03:23:18,155 INFO L226 Difference]: Without dead ends: 5919 [2024-11-22 03:23:18,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:18,163 INFO L432 NwaCegarLoop]: 4754 mSDtfsCounter, 5120 mSDsluCounter, 14331 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5140 SdHoareTripleChecker+Valid, 19085 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:18,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5140 Valid, 19085 Invalid, 1114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 03:23:18,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5919 states. [2024-11-22 03:23:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5919 to 5722. [2024-11-22 03:23:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5452 states have (on average 1.6913059427732942) internal successors, (9221), 5474 states have internal predecessors, (9221), 194 states have call successors, (194), 54 states have call predecessors, (194), 74 states have return successors, (258), 201 states have call predecessors, (258), 194 states have call successors, (258) [2024-11-22 03:23:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 9673 transitions. [2024-11-22 03:23:18,397 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 9673 transitions. Word has length 178 [2024-11-22 03:23:18,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:18,397 INFO L471 AbstractCegarLoop]: Abstraction has 5722 states and 9673 transitions. [2024-11-22 03:23:18,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:18,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 9673 transitions. [2024-11-22 03:23:18,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:18,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:18,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:18,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:23:18,402 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:18,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1722434735, now seen corresponding path program 1 times [2024-11-22 03:23:18,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:18,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685838798] [2024-11-22 03:23:18,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:18,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:18,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:18,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685838798] [2024-11-22 03:23:18,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685838798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:18,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:18,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:18,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227537529] [2024-11-22 03:23:18,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:18,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:18,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:18,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:18,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:18,590 INFO L87 Difference]: Start difference. First operand 5722 states and 9673 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:19,656 INFO L93 Difference]: Finished difference Result 13326 states and 22121 transitions. [2024-11-22 03:23:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:19,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:19,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:19,726 INFO L225 Difference]: With dead ends: 13326 [2024-11-22 03:23:19,727 INFO L226 Difference]: Without dead ends: 9745 [2024-11-22 03:23:19,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:19,746 INFO L432 NwaCegarLoop]: 4747 mSDtfsCounter, 5112 mSDsluCounter, 14312 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 19059 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:19,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 19059 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 03:23:19,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9745 states. [2024-11-22 03:23:20,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9745 to 9474. [2024-11-22 03:23:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9474 states, 8942 states have (on average 1.6693133527175128) internal successors, (14927), 9010 states have internal predecessors, (14927), 362 states have call successors, (362), 102 states have call predecessors, (362), 168 states have return successors, (618), 377 states have call predecessors, (618), 362 states have call successors, (618) [2024-11-22 03:23:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9474 states to 9474 states and 15907 transitions. [2024-11-22 03:23:20,149 INFO L78 Accepts]: Start accepts. Automaton has 9474 states and 15907 transitions. Word has length 178 [2024-11-22 03:23:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:20,150 INFO L471 AbstractCegarLoop]: Abstraction has 9474 states and 15907 transitions. [2024-11-22 03:23:20,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 9474 states and 15907 transitions. [2024-11-22 03:23:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:20,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:20,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:20,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:23:20,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:20,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash 799267309, now seen corresponding path program 1 times [2024-11-22 03:23:20,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:20,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711000544] [2024-11-22 03:23:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:20,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:20,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:20,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711000544] [2024-11-22 03:23:20,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711000544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:20,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:20,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:20,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613823201] [2024-11-22 03:23:20,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:20,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:20,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:20,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:20,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:20,332 INFO L87 Difference]: Start difference. First operand 9474 states and 15907 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:21,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:21,610 INFO L93 Difference]: Finished difference Result 25846 states and 43565 transitions. [2024-11-22 03:23:21,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:21,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:21,694 INFO L225 Difference]: With dead ends: 25846 [2024-11-22 03:23:21,694 INFO L226 Difference]: Without dead ends: 18513 [2024-11-22 03:23:21,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:21,733 INFO L432 NwaCegarLoop]: 4744 mSDtfsCounter, 5107 mSDsluCounter, 14303 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5127 SdHoareTripleChecker+Valid, 19047 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:21,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5127 Valid, 19047 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 03:23:21,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18513 states. [2024-11-22 03:23:22,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18513 to 18085. [2024-11-22 03:23:22,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18085 states, 16975 states have (on average 1.6720471281296023) internal successors, (28383), 17189 states have internal predecessors, (28383), 698 states have call successors, (698), 198 states have call predecessors, (698), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2024-11-22 03:23:22,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18085 states to 18085 states and 30803 transitions. [2024-11-22 03:23:22,406 INFO L78 Accepts]: Start accepts. Automaton has 18085 states and 30803 transitions. Word has length 178 [2024-11-22 03:23:22,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:22,407 INFO L471 AbstractCegarLoop]: Abstraction has 18085 states and 30803 transitions. [2024-11-22 03:23:22,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:22,407 INFO L276 IsEmpty]: Start isEmpty. Operand 18085 states and 30803 transitions. [2024-11-22 03:23:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:22,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:22,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:22,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:23:22,418 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:22,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1185129711, now seen corresponding path program 1 times [2024-11-22 03:23:22,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:22,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147707191] [2024-11-22 03:23:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:22,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:22,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:22,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147707191] [2024-11-22 03:23:22,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147707191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:22,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:22,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:23:22,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864874835] [2024-11-22 03:23:22,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:22,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:23:22,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:22,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:23:22,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:23:22,598 INFO L87 Difference]: Start difference. First operand 18085 states and 30803 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:23,651 INFO L93 Difference]: Finished difference Result 38929 states and 67772 transitions. [2024-11-22 03:23:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:23:23,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:23,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:23,754 INFO L225 Difference]: With dead ends: 38929 [2024-11-22 03:23:23,754 INFO L226 Difference]: Without dead ends: 22985 [2024-11-22 03:23:23,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:23,816 INFO L432 NwaCegarLoop]: 4408 mSDtfsCounter, 4776 mSDsluCounter, 8661 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 13069 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:23,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 13069 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:23:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22985 states. [2024-11-22 03:23:24,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22985 to 18085. [2024-11-22 03:23:24,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18085 states, 16975 states have (on average 1.6701030927835052) internal successors, (28350), 17189 states have internal predecessors, (28350), 698 states have call successors, (698), 198 states have call predecessors, (698), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2024-11-22 03:23:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18085 states to 18085 states and 30770 transitions. [2024-11-22 03:23:24,526 INFO L78 Accepts]: Start accepts. Automaton has 18085 states and 30770 transitions. Word has length 178 [2024-11-22 03:23:24,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:24,528 INFO L471 AbstractCegarLoop]: Abstraction has 18085 states and 30770 transitions. [2024-11-22 03:23:24,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:24,529 INFO L276 IsEmpty]: Start isEmpty. Operand 18085 states and 30770 transitions. [2024-11-22 03:23:24,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:24,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:24,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:24,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:23:24,540 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:24,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash 920482221, now seen corresponding path program 1 times [2024-11-22 03:23:24,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:24,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091221734] [2024-11-22 03:23:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:24,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:24,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091221734] [2024-11-22 03:23:24,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091221734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:24,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:24,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:24,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133774084] [2024-11-22 03:23:24,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:24,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:24,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:24,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:24,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:24,853 INFO L87 Difference]: Start difference. First operand 18085 states and 30770 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:27,014 INFO L93 Difference]: Finished difference Result 54861 states and 95552 transitions. [2024-11-22 03:23:27,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:27,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:27,247 INFO L225 Difference]: With dead ends: 54861 [2024-11-22 03:23:27,247 INFO L226 Difference]: Without dead ends: 38917 [2024-11-22 03:23:27,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:27,331 INFO L432 NwaCegarLoop]: 4736 mSDtfsCounter, 5094 mSDsluCounter, 14280 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5114 SdHoareTripleChecker+Valid, 19016 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:27,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5114 Valid, 19016 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 03:23:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38917 states. [2024-11-22 03:23:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38917 to 38223. [2024-11-22 03:23:28,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38223 states, 35795 states have (on average 1.6918564045257718) internal successors, (60560), 36463 states have internal predecessors, (60560), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2024-11-22 03:23:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38223 states to 38223 states and 67396 transitions. [2024-11-22 03:23:29,348 INFO L78 Accepts]: Start accepts. Automaton has 38223 states and 67396 transitions. Word has length 178 [2024-11-22 03:23:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:29,349 INFO L471 AbstractCegarLoop]: Abstraction has 38223 states and 67396 transitions. [2024-11-22 03:23:29,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 38223 states and 67396 transitions. [2024-11-22 03:23:29,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:29,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:29,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:29,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:23:29,365 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:29,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1443359441, now seen corresponding path program 1 times [2024-11-22 03:23:29,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:29,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806687958] [2024-11-22 03:23:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:29,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:29,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:29,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806687958] [2024-11-22 03:23:29,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806687958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:29,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:29,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:29,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242095529] [2024-11-22 03:23:29,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:29,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:29,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:29,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:29,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:29,739 INFO L87 Difference]: Start difference. First operand 38223 states and 67396 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:32,366 INFO L93 Difference]: Finished difference Result 124321 states and 228176 transitions. [2024-11-22 03:23:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:33,065 INFO L225 Difference]: With dead ends: 124321 [2024-11-22 03:23:33,065 INFO L226 Difference]: Without dead ends: 88239 [2024-11-22 03:23:33,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:33,193 INFO L432 NwaCegarLoop]: 4733 mSDtfsCounter, 5089 mSDsluCounter, 14271 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 19004 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:33,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 19004 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:23:33,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88239 states. [2024-11-22 03:23:36,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88239 to 87004. [2024-11-22 03:23:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87004 states, 81454 states have (on average 1.7248999435264076) internal successors, (140500), 83516 states have internal predecessors, (140500), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 2834 states have return successors, (19098), 2841 states have call predecessors, (19098), 2714 states have call successors, (19098) [2024-11-22 03:23:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87004 states to 87004 states and 162312 transitions. [2024-11-22 03:23:36,740 INFO L78 Accepts]: Start accepts. Automaton has 87004 states and 162312 transitions. Word has length 178 [2024-11-22 03:23:36,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:36,741 INFO L471 AbstractCegarLoop]: Abstraction has 87004 states and 162312 transitions. [2024-11-22 03:23:36,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 87004 states and 162312 transitions. [2024-11-22 03:23:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:36,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:36,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:36,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:23:36,774 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:36,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1528428909, now seen corresponding path program 1 times [2024-11-22 03:23:36,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:36,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544202275] [2024-11-22 03:23:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:36,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:37,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:37,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544202275] [2024-11-22 03:23:37,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544202275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:37,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:37,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:37,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207346685] [2024-11-22 03:23:37,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:37,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:37,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:37,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:37,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:37,335 INFO L87 Difference]: Start difference. First operand 87004 states and 162312 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:43,465 INFO L93 Difference]: Finished difference Result 295742 states and 583218 transitions. [2024-11-22 03:23:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:23:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 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 178 [2024-11-22 03:23:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:44,962 INFO L225 Difference]: With dead ends: 295742 [2024-11-22 03:23:44,963 INFO L226 Difference]: Without dead ends: 210879 [2024-11-22 03:23:45,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:23:45,171 INFO L432 NwaCegarLoop]: 4456 mSDtfsCounter, 5128 mSDsluCounter, 13601 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 18057 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:45,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 18057 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:23:45,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210879 states. [2024-11-22 03:23:52,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210879 to 208623. [2024-11-22 03:23:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208623 states, 195371 states have (on average 1.7610392535227848) internal successors, (344056), 201679 states have internal predecessors, (344056), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 7848 states have return successors, (70938), 5657 states have call predecessors, (70938), 5402 states have call successors, (70938) [2024-11-22 03:23:54,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208623 states to 208623 states and 420396 transitions. [2024-11-22 03:23:54,971 INFO L78 Accepts]: Start accepts. Automaton has 208623 states and 420396 transitions. Word has length 178 [2024-11-22 03:23:54,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:54,972 INFO L471 AbstractCegarLoop]: Abstraction has 208623 states and 420396 transitions. [2024-11-22 03:23:54,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:23:54,972 INFO L276 IsEmpty]: Start isEmpty. Operand 208623 states and 420396 transitions. [2024-11-22 03:23:55,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 03:23:55,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:55,037 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:23:55,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 03:23:55,038 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:55,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:55,038 INFO L85 PathProgramCache]: Analyzing trace with hash -869558929, now seen corresponding path program 1 times [2024-11-22 03:23:55,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:55,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781374689] [2024-11-22 03:23:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:55,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:55,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:55,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:55,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781374689] [2024-11-22 03:23:55,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781374689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:55,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:55,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:23:55,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156974559] [2024-11-22 03:23:55,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:55,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:23:55,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:55,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:23:55,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:23:55,167 INFO L87 Difference]: Start difference. First operand 208623 states and 420396 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)