./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_label42+token_ring.15.cil.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 4859a4cdb98a3caca502aed15b30b6d563e2037c3c786a209b1853d003f6e66c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:33:54,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:33:54,368 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:33:54,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:33:54,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:33:54,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:33:54,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:33:54,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:33:54,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:33:54,394 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:33:54,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:33:54,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:33:54,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:33:54,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:33:54,397 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:33:54,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:33:54,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:33:54,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:33:54,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:33:54,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:33:54,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:33:54,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:33:54,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:33:54,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:33:54,401 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:33:54,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:33:54,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:33:54,402 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:33:54,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:33:54,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:33:54,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:33:54,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:33:54,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:33:54,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:33:54,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:33:54,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:33:54,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:33:54,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:33:54,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:33:54,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:33:54,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:33:54,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:33:54,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4859a4cdb98a3caca502aed15b30b6d563e2037c3c786a209b1853d003f6e66c [2024-11-18 15:33:54,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:33:54,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:33:54,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:33:54,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:33:54,636 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:33:54,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.15.cil.c [2024-11-18 15:33:55,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:33:56,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:33:56,504 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.15.cil.c [2024-11-18 15:33:56,551 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63cbfb482/e5caf5f4127a4e25b8a2991c7442ed6c/FLAG52f64b04d [2024-11-18 15:33:56,982 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63cbfb482/e5caf5f4127a4e25b8a2991c7442ed6c [2024-11-18 15:33:56,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:33:56,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:33:56,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:33:56,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:33:56,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:33:56,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:33:56" (1/1) ... [2024-11-18 15:33:56,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b98bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:56, skipping insertion in model container [2024-11-18 15:33:56,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:33:56" (1/1) ... [2024-11-18 15:33:57,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:33:58,431 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_label42+token_ring.15.cil.c[378560,378573] [2024-11-18 15:33:58,458 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_label42+token_ring.15.cil.c[383339,383352] [2024-11-18 15:33:58,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:33:58,713 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:33:59,355 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_label42+token_ring.15.cil.c[378560,378573] [2024-11-18 15:33:59,361 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_label42+token_ring.15.cil.c[383339,383352] [2024-11-18 15:33:59,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:33:59,434 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:33:59,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59 WrapperNode [2024-11-18 15:33:59,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:33:59,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:33:59,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:33:59,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:33:59,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:33:59,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:33:59,850 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13297 [2024-11-18 15:33:59,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:33:59,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:33:59,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:33:59,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:33:59,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:33:59,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:33:59,929 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,008 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]. [2024-11-18 15:34:00,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:34:00,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:34:00,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:34:00,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:34:00,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (1/1) ... [2024-11-18 15:34:00,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:34:00,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:34:00,512 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) [2024-11-18 15:34:00,521 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 [2024-11-18 15:34:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:34:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:34:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:34:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:34:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:34:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:34:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:34:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-18 15:34:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-18 15:34:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:34:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:34:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:34:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:34:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:34:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:34:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:34:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:34:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:34:00,736 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:34:00,738 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:34:07,043 INFO L? ?]: Removed 1765 outVars from TransFormulas that were not future-live. [2024-11-18 15:34:07,043 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:34:07,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:34:07,101 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-18 15:34:07,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:34:07 BoogieIcfgContainer [2024-11-18 15:34:07,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:34:07,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:34:07,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:34:07,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:34:07,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:33:56" (1/3) ... [2024-11-18 15:34:07,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646db13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:34:07, skipping insertion in model container [2024-11-18 15:34:07,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:33:59" (2/3) ... [2024-11-18 15:34:07,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646db13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:34:07, skipping insertion in model container [2024-11-18 15:34:07,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:34:07" (3/3) ... [2024-11-18 15:34:07,109 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.15.cil.c [2024-11-18 15:34:07,123 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:34:07,123 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:34:07,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:34:07,236 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;@10e8a594, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:34:07,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:34:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 2610 states, 2571 states have (on average 1.837417347335667) internal successors, (4724), 2576 states have internal predecessors, (4724), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-18 15:34:07,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:07,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:07,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:07,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:07,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:07,273 INFO L85 PathProgramCache]: Analyzing trace with hash 407671358, now seen corresponding path program 1 times [2024-11-18 15:34:07,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:07,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778316461] [2024-11-18 15:34:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:07,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:07,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778316461] [2024-11-18 15:34:07,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778316461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:07,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:07,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:34:07,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755636973] [2024-11-18 15:34:07,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:07,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:34:07,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:07,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:34:07,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:34:07,725 INFO L87 Difference]: Start difference. First operand has 2610 states, 2571 states have (on average 1.837417347335667) internal successors, (4724), 2576 states have internal predecessors, (4724), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:07,883 INFO L93 Difference]: Finished difference Result 5211 states and 9549 transitions. [2024-11-18 15:34:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:34:07,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:07,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:07,907 INFO L225 Difference]: With dead ends: 5211 [2024-11-18 15:34:07,908 INFO L226 Difference]: Without dead ends: 2542 [2024-11-18 15:34:07,916 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 [2024-11-18 15:34:07,918 INFO L432 NwaCegarLoop]: 4683 mSDtfsCounter, 654 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 8705 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 [2024-11-18 15:34:07,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 8705 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:34:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-11-18 15:34:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2542. [2024-11-18 15:34:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2505 states have (on average 1.8199600798403193) internal successors, (4559), 2508 states have internal predecessors, (4559), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-18 15:34:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 4615 transitions. [2024-11-18 15:34:08,046 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 4615 transitions. Word has length 190 [2024-11-18 15:34:08,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:08,047 INFO L471 AbstractCegarLoop]: Abstraction has 2542 states and 4615 transitions. [2024-11-18 15:34:08,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:08,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 4615 transitions. [2024-11-18 15:34:08,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:08,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:08,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:08,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:34:08,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:08,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:08,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1223718588, now seen corresponding path program 1 times [2024-11-18 15:34:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:08,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432968458] [2024-11-18 15:34:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:08,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:08,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432968458] [2024-11-18 15:34:08,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432968458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:08,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:08,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:34:08,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807177610] [2024-11-18 15:34:08,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:08,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:34:08,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:08,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:34:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:34:08,179 INFO L87 Difference]: Start difference. First operand 2542 states and 4615 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:08,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:08,247 INFO L93 Difference]: Finished difference Result 2946 states and 5243 transitions. [2024-11-18 15:34:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:34:08,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:08,257 INFO L225 Difference]: With dead ends: 2946 [2024-11-18 15:34:08,257 INFO L226 Difference]: Without dead ends: 2542 [2024-11-18 15:34:08,259 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 [2024-11-18 15:34:08,261 INFO L432 NwaCegarLoop]: 4613 mSDtfsCounter, 640 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 8571 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 [2024-11-18 15:34:08,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 8571 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:34:08,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-11-18 15:34:08,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2542. [2024-11-18 15:34:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2505 states have (on average 1.8195608782435129) internal successors, (4558), 2508 states have internal predecessors, (4558), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-18 15:34:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 4614 transitions. [2024-11-18 15:34:08,319 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 4614 transitions. Word has length 190 [2024-11-18 15:34:08,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:08,320 INFO L471 AbstractCegarLoop]: Abstraction has 2542 states and 4614 transitions. [2024-11-18 15:34:08,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:08,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 4614 transitions. [2024-11-18 15:34:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:08,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:08,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:08,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:34:08,325 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:08,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash 575125818, now seen corresponding path program 1 times [2024-11-18 15:34:08,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:08,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674470209] [2024-11-18 15:34:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:08,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:08,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:08,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674470209] [2024-11-18 15:34:08,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674470209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:08,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:08,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:34:08,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503955286] [2024-11-18 15:34:08,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:08,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:34:08,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:08,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:34:08,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:34:08,514 INFO L87 Difference]: Start difference. First operand 2542 states and 4614 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:09,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:09,187 INFO L93 Difference]: Finished difference Result 3394 states and 5962 transitions. [2024-11-18 15:34:09,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:34:09,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:09,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:09,199 INFO L225 Difference]: With dead ends: 3394 [2024-11-18 15:34:09,199 INFO L226 Difference]: Without dead ends: 2994 [2024-11-18 15:34:09,202 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 [2024-11-18 15:34:09,203 INFO L432 NwaCegarLoop]: 4471 mSDtfsCounter, 5216 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 13706 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:09,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5237 Valid, 13706 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:34:09,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2024-11-18 15:34:09,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2961. [2024-11-18 15:34:09,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2895 states have (on average 1.7875647668393781) internal successors, (5175), 2899 states have internal predecessors, (5175), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-18 15:34:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 5276 transitions. [2024-11-18 15:34:09,278 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 5276 transitions. Word has length 190 [2024-11-18 15:34:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:09,278 INFO L471 AbstractCegarLoop]: Abstraction has 2961 states and 5276 transitions. [2024-11-18 15:34:09,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 5276 transitions. [2024-11-18 15:34:09,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:09,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:09,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:09,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:34:09,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:09,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1271900618, now seen corresponding path program 1 times [2024-11-18 15:34:09,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:09,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349228253] [2024-11-18 15:34:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:09,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:09,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:09,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349228253] [2024-11-18 15:34:09,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349228253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:09,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:09,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:09,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407381640] [2024-11-18 15:34:09,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:09,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:09,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:09,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:09,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:09,601 INFO L87 Difference]: Start difference. First operand 2961 states and 5276 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:10,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:10,535 INFO L93 Difference]: Finished difference Result 4315 states and 7443 transitions. [2024-11-18 15:34:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:34:10,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:10,548 INFO L225 Difference]: With dead ends: 4315 [2024-11-18 15:34:10,548 INFO L226 Difference]: Without dead ends: 3496 [2024-11-18 15:34:10,554 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 [2024-11-18 15:34:10,555 INFO L432 NwaCegarLoop]: 4832 mSDtfsCounter, 5227 mSDsluCounter, 14570 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5248 SdHoareTripleChecker+Valid, 19402 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:10,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5248 Valid, 19402 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:34:10,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2024-11-18 15:34:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3351. [2024-11-18 15:34:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3256 states have (on average 1.761056511056511) internal successors, (5734), 3261 states have internal predecessors, (5734), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2024-11-18 15:34:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 5882 transitions. [2024-11-18 15:34:10,667 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 5882 transitions. Word has length 190 [2024-11-18 15:34:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:10,667 INFO L471 AbstractCegarLoop]: Abstraction has 3351 states and 5882 transitions. [2024-11-18 15:34:10,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:10,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 5882 transitions. [2024-11-18 15:34:10,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:10,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:10,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:10,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:34:10,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:10,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:10,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1099816248, now seen corresponding path program 1 times [2024-11-18 15:34:10,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:10,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440757887] [2024-11-18 15:34:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:10,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:10,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440757887] [2024-11-18 15:34:10,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440757887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:10,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:10,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:10,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954275255] [2024-11-18 15:34:10,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:10,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:10,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:10,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:10,874 INFO L87 Difference]: Start difference. First operand 3351 states and 5882 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:11,768 INFO L93 Difference]: Finished difference Result 5553 states and 9396 transitions. [2024-11-18 15:34:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:34:11,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:11,786 INFO L225 Difference]: With dead ends: 5553 [2024-11-18 15:34:11,786 INFO L226 Difference]: Without dead ends: 4344 [2024-11-18 15:34:11,791 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 [2024-11-18 15:34:11,792 INFO L432 NwaCegarLoop]: 4824 mSDtfsCounter, 5219 mSDsluCounter, 14548 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5240 SdHoareTripleChecker+Valid, 19372 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:11,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5240 Valid, 19372 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:34:11,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2024-11-18 15:34:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4181. [2024-11-18 15:34:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4181 states, 4026 states have (on average 1.725037257824143) internal successors, (6945), 4035 states have internal predecessors, (6945), 117 states have call successors, (117), 31 states have call predecessors, (117), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2024-11-18 15:34:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4181 states to 4181 states and 7193 transitions. [2024-11-18 15:34:11,921 INFO L78 Accepts]: Start accepts. Automaton has 4181 states and 7193 transitions. Word has length 190 [2024-11-18 15:34:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:11,922 INFO L471 AbstractCegarLoop]: Abstraction has 4181 states and 7193 transitions. [2024-11-18 15:34:11,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4181 states and 7193 transitions. [2024-11-18 15:34:11,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:11,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:11,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:11,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:34:11,931 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:11,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:11,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1598373050, now seen corresponding path program 1 times [2024-11-18 15:34:11,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:11,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398642217] [2024-11-18 15:34:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:11,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:12,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398642217] [2024-11-18 15:34:12,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398642217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:12,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:12,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:12,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604648530] [2024-11-18 15:34:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:12,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:12,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:12,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:12,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:12,096 INFO L87 Difference]: Start difference. First operand 4181 states and 7193 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:13,064 INFO L93 Difference]: Finished difference Result 8235 states and 13717 transitions. [2024-11-18 15:34:13,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:34:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:13,091 INFO L225 Difference]: With dead ends: 8235 [2024-11-18 15:34:13,092 INFO L226 Difference]: Without dead ends: 6196 [2024-11-18 15:34:13,101 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 [2024-11-18 15:34:13,101 INFO L432 NwaCegarLoop]: 4821 mSDtfsCounter, 5214 mSDsluCounter, 14539 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5235 SdHoareTripleChecker+Valid, 19360 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:13,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5235 Valid, 19360 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:34:13,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6196 states. [2024-11-18 15:34:13,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6196 to 5988. [2024-11-18 15:34:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5988 states, 5707 states have (on average 1.6893288943402838) internal successors, (9641), 5730 states have internal predecessors, (9641), 205 states have call successors, (205), 55 states have call predecessors, (205), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2024-11-18 15:34:13,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 10113 transitions. [2024-11-18 15:34:13,261 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 10113 transitions. Word has length 190 [2024-11-18 15:34:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:13,261 INFO L471 AbstractCegarLoop]: Abstraction has 5988 states and 10113 transitions. [2024-11-18 15:34:13,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 10113 transitions. [2024-11-18 15:34:13,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:13,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:13,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:13,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:34:13,266 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:13,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:13,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2126322440, now seen corresponding path program 1 times [2024-11-18 15:34:13,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:13,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155805580] [2024-11-18 15:34:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:13,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:13,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:13,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155805580] [2024-11-18 15:34:13,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155805580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:13,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:13,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:13,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576835015] [2024-11-18 15:34:13,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:13,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:13,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:13,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:13,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:13,410 INFO L87 Difference]: Start difference. First operand 5988 states and 10113 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:14,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:14,308 INFO L93 Difference]: Finished difference Result 14168 states and 23539 transitions. [2024-11-18 15:34:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:34:14,309 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:14,359 INFO L225 Difference]: With dead ends: 14168 [2024-11-18 15:34:14,359 INFO L226 Difference]: Without dead ends: 10322 [2024-11-18 15:34:14,371 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 [2024-11-18 15:34:14,374 INFO L432 NwaCegarLoop]: 4818 mSDtfsCounter, 5209 mSDsluCounter, 14530 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5230 SdHoareTripleChecker+Valid, 19348 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:14,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5230 Valid, 19348 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:34:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10322 states. [2024-11-18 15:34:14,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10322 to 10025. [2024-11-18 15:34:14,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10025 states, 9474 states have (on average 1.6699387798184504) internal successors, (15821), 9543 states have internal predecessors, (15821), 381 states have call successors, (381), 103 states have call predecessors, (381), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2024-11-18 15:34:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10025 states to 10025 states and 16837 transitions. [2024-11-18 15:34:14,613 INFO L78 Accepts]: Start accepts. Automaton has 10025 states and 16837 transitions. Word has length 190 [2024-11-18 15:34:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:14,614 INFO L471 AbstractCegarLoop]: Abstraction has 10025 states and 16837 transitions. [2024-11-18 15:34:14,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:14,614 INFO L276 IsEmpty]: Start isEmpty. Operand 10025 states and 16837 transitions. [2024-11-18 15:34:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:14,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:14,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:14,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:34:14,620 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:14,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash -722453254, now seen corresponding path program 1 times [2024-11-18 15:34:14,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:14,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139863618] [2024-11-18 15:34:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:14,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:14,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:14,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139863618] [2024-11-18 15:34:14,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139863618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:14,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:14,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:14,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327926752] [2024-11-18 15:34:14,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:14,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:14,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:14,751 INFO L87 Difference]: Start difference. First operand 10025 states and 16837 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:15,608 INFO L93 Difference]: Finished difference Result 27667 states and 46701 transitions. [2024-11-18 15:34:15,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:34:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:15,679 INFO L225 Difference]: With dead ends: 27667 [2024-11-18 15:34:15,680 INFO L226 Difference]: Without dead ends: 19784 [2024-11-18 15:34:15,707 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 [2024-11-18 15:34:15,708 INFO L432 NwaCegarLoop]: 4509 mSDtfsCounter, 5245 mSDsluCounter, 13782 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 18291 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:15,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5266 Valid, 18291 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:34:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19784 states. [2024-11-18 15:34:16,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19784 to 19314. [2024-11-18 15:34:16,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19314 states, 18169 states have (on average 1.6754361825086685) internal successors, (30441), 18384 states have internal predecessors, (30441), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2024-11-18 15:34:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 32929 transitions. [2024-11-18 15:34:16,292 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 32929 transitions. Word has length 190 [2024-11-18 15:34:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:16,292 INFO L471 AbstractCegarLoop]: Abstraction has 19314 states and 32929 transitions. [2024-11-18 15:34:16,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:16,293 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 32929 transitions. [2024-11-18 15:34:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:16,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:16,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:16,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:34:16,300 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:16,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:16,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1508451144, now seen corresponding path program 1 times [2024-11-18 15:34:16,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:16,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206709259] [2024-11-18 15:34:16,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:16,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:16,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206709259] [2024-11-18 15:34:16,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206709259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:16,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:16,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:34:16,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616582316] [2024-11-18 15:34:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:16,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:34:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:16,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:34:16,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:34:16,412 INFO L87 Difference]: Start difference. First operand 19314 states and 32929 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:17,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:17,055 INFO L93 Difference]: Finished difference Result 41876 states and 73002 transitions. [2024-11-18 15:34:17,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:34:17,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:17,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:17,144 INFO L225 Difference]: With dead ends: 41876 [2024-11-18 15:34:17,144 INFO L226 Difference]: Without dead ends: 24704 [2024-11-18 15:34:17,196 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 [2024-11-18 15:34:17,198 INFO L432 NwaCegarLoop]: 4448 mSDtfsCounter, 4845 mSDsluCounter, 8727 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 13175 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:17,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4866 Valid, 13175 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:34:17,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24704 states. [2024-11-18 15:34:17,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24704 to 19314. [2024-11-18 15:34:17,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19314 states, 18169 states have (on average 1.673619902030932) internal successors, (30408), 18384 states have internal predecessors, (30408), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2024-11-18 15:34:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 32896 transitions. [2024-11-18 15:34:17,841 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 32896 transitions. Word has length 190 [2024-11-18 15:34:17,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:17,841 INFO L471 AbstractCegarLoop]: Abstraction has 19314 states and 32896 transitions. [2024-11-18 15:34:17,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 32896 transitions. [2024-11-18 15:34:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:17,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:17,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:17,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:34:17,853 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:17,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:17,854 INFO L85 PathProgramCache]: Analyzing trace with hash -841069254, now seen corresponding path program 1 times [2024-11-18 15:34:17,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:17,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197852153] [2024-11-18 15:34:17,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:17,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:18,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:18,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197852153] [2024-11-18 15:34:18,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197852153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:18,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:18,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:18,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480753770] [2024-11-18 15:34:18,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:18,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:18,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:18,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:18,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:18,011 INFO L87 Difference]: Start difference. First operand 19314 states and 32896 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:19,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:19,666 INFO L93 Difference]: Finished difference Result 59072 states and 102988 transitions. [2024-11-18 15:34:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:34:19,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:19,848 INFO L225 Difference]: With dead ends: 59072 [2024-11-18 15:34:19,849 INFO L226 Difference]: Without dead ends: 41900 [2024-11-18 15:34:19,926 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 [2024-11-18 15:34:19,927 INFO L432 NwaCegarLoop]: 4807 mSDtfsCounter, 5191 mSDsluCounter, 14498 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5212 SdHoareTripleChecker+Valid, 19305 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:19,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5212 Valid, 19305 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:34:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41900 states. [2024-11-18 15:34:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41900 to 41132. [2024-11-18 15:34:21,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41132 states, 38637 states have (on average 1.69769909672076) internal successors, (65594), 39306 states have internal predecessors, (65594), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2024-11-18 15:34:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41132 states to 41132 states and 72562 transitions. [2024-11-18 15:34:21,310 INFO L78 Accepts]: Start accepts. Automaton has 41132 states and 72562 transitions. Word has length 190 [2024-11-18 15:34:21,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:21,311 INFO L471 AbstractCegarLoop]: Abstraction has 41132 states and 72562 transitions. [2024-11-18 15:34:21,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 41132 states and 72562 transitions. [2024-11-18 15:34:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:21,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:21,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:21,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:34:21,325 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:21,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:21,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1258669176, now seen corresponding path program 1 times [2024-11-18 15:34:21,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:21,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104110146] [2024-11-18 15:34:21,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:21,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:21,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:21,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104110146] [2024-11-18 15:34:21,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104110146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:21,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:21,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:21,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426828520] [2024-11-18 15:34:21,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:21,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:21,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:21,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:21,437 INFO L87 Difference]: Start difference. First operand 41132 states and 72562 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:23,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:23,753 INFO L93 Difference]: Finished difference Result 134608 states and 246804 transitions. [2024-11-18 15:34:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:34:23,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:23,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:24,351 INFO L225 Difference]: With dead ends: 134608 [2024-11-18 15:34:24,351 INFO L226 Difference]: Without dead ends: 95618 [2024-11-18 15:34:24,462 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 [2024-11-18 15:34:24,463 INFO L432 NwaCegarLoop]: 4804 mSDtfsCounter, 5186 mSDsluCounter, 14489 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 19293 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:24,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 19293 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:34:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95618 states. [2024-11-18 15:34:27,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95618 to 94245. [2024-11-18 15:34:27,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94245 states, 88564 states have (on average 1.7324194932478207) internal successors, (153430), 90627 states have internal predecessors, (153430), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2024-11-18 15:34:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94245 states to 94245 states and 175502 transitions. [2024-11-18 15:34:28,180 INFO L78 Accepts]: Start accepts. Automaton has 94245 states and 175502 transitions. Word has length 190 [2024-11-18 15:34:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:28,181 INFO L471 AbstractCegarLoop]: Abstraction has 94245 states and 175502 transitions. [2024-11-18 15:34:28,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 94245 states and 175502 transitions. [2024-11-18 15:34:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:28,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:28,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:28,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:34:28,210 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:28,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:28,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1603497338, now seen corresponding path program 1 times [2024-11-18 15:34:28,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:28,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23329963] [2024-11-18 15:34:28,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:28,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:28,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:28,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23329963] [2024-11-18 15:34:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23329963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:28,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:28,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:34:28,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470447472] [2024-11-18 15:34:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:28,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:34:28,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:34:28,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:34:28,374 INFO L87 Difference]: Start difference. First operand 94245 states and 175502 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:32,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:34:32,225 INFO L93 Difference]: Finished difference Result 225750 states and 435892 transitions. [2024-11-18 15:34:32,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:34:32,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-18 15:34:32,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:34:32,753 INFO L225 Difference]: With dead ends: 225750 [2024-11-18 15:34:32,754 INFO L226 Difference]: Without dead ends: 133647 [2024-11-18 15:34:33,091 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 [2024-11-18 15:34:33,091 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 4839 mSDsluCounter, 8710 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4860 SdHoareTripleChecker+Valid, 13149 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:34:33,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4860 Valid, 13149 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:34:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133647 states. [2024-11-18 15:34:37,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133647 to 94245. [2024-11-18 15:34:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94245 states, 88564 states have (on average 1.7309629194706653) internal successors, (153301), 90627 states have internal predecessors, (153301), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2024-11-18 15:34:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94245 states to 94245 states and 175373 transitions. [2024-11-18 15:34:38,690 INFO L78 Accepts]: Start accepts. Automaton has 94245 states and 175373 transitions. Word has length 190 [2024-11-18 15:34:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:34:38,691 INFO L471 AbstractCegarLoop]: Abstraction has 94245 states and 175373 transitions. [2024-11-18 15:34:38,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:34:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 94245 states and 175373 transitions. [2024-11-18 15:34:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-18 15:34:38,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:34:38,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:34:38,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:34:38,718 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:34:38,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:34:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash -165974276, now seen corresponding path program 1 times [2024-11-18 15:34:38,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:34:38,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211174081] [2024-11-18 15:34:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:34:38,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:34:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:34:38,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:34:38,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:34:38,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211174081] [2024-11-18 15:34:38,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211174081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:34:38,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:34:38,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:34:38,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841600278] [2024-11-18 15:34:38,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:34:38,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:34:38,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:34:38,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:34:38,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:34:38,886 INFO L87 Difference]: Start difference. First operand 94245 states and 175373 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)