./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 241a591afac9616f6eb2efaff376ca7c5ab81b92f8f29d73e0797caec39fd2c8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:18:54,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:18:54,082 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:18:54,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:18:54,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:18:54,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:18:54,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:18:54,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:18:54,106 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:18:54,106 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:18:54,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:18:54,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:18:54,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:18:54,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:18:54,109 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:18:54,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:18:54,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:18:54,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:18:54,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:18:54,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:18:54,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:18:54,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:18:54,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:18:54,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:18:54,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:18:54,115 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:18:54,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:18:54,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:18:54,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:18:54,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:18:54,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:18:54,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:18:54,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:18:54,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:18:54,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:18:54,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:18:54,117 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:18:54,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:18:54,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:18:54,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:18:54,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:18:54,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:18:54,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 241a591afac9616f6eb2efaff376ca7c5ab81b92f8f29d73e0797caec39fd2c8 [2024-11-22 03:18:54,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:18:54,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:18:54,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:18:54,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:18:54,336 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:18:54,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-1.c [2024-11-22 03:18:55,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:18:56,052 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:18:56,054 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-1.c [2024-11-22 03:18:56,106 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/083ec66fd/107cbf6c6d334d54a2752856e9646edd/FLAGce23f096b [2024-11-22 03:18:56,122 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/083ec66fd/107cbf6c6d334d54a2752856e9646edd [2024-11-22 03:18:56,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:18:56,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:18:56,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:18:56,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:18:56,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:18:56,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:18:56" (1/1) ... [2024-11-22 03:18:56,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e3421f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:56, skipping insertion in model container [2024-11-22 03:18:56,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:18:56" (1/1) ... [2024-11-22 03:18:56,312 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:18:57,596 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.05.cil-1.c[378560,378573] [2024-11-22 03:18:57,618 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.05.cil-1.c[383339,383352] [2024-11-22 03:18:57,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:18:57,780 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:18:58,415 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.05.cil-1.c[378560,378573] [2024-11-22 03:18:58,421 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.05.cil-1.c[383339,383352] [2024-11-22 03:18:58,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:18:58,488 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:18:58,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58 WrapperNode [2024-11-22 03:18:58,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:18:58,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:18:58,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:18:58,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:18:58,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:58,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:58,917 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-11-22 03:18:58,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:18:58,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:18:58,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:18:58,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:18:58,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:58,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:58,996 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,064 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 03:18:59,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,331 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:18:59,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:18:59,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:18:59,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:18:59,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (1/1) ... [2024-11-22 03:18:59,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:18:59,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:18:59,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 03:18:59,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 03:18:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:18:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:18:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:18:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:18:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:18:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:18:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:18:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:18:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:18:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:18:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:18:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:18:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:18:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:18:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:18:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:18:59,763 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:18:59,765 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:19:05,699 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-22 03:19:05,699 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:19:05,751 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:19:05,751 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-22 03:19:05,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:19:05 BoogieIcfgContainer [2024-11-22 03:19:05,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:19:05,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:19:05,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:19:05,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:19:05,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:18:56" (1/3) ... [2024-11-22 03:19:05,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba361be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:19:05, skipping insertion in model container [2024-11-22 03:19:05,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:18:58" (2/3) ... [2024-11-22 03:19:05,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba361be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:19:05, skipping insertion in model container [2024-11-22 03:19:05,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:19:05" (3/3) ... [2024-11-22 03:19:05,759 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.05.cil-1.c [2024-11-22 03:19:05,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:19:05,774 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:19:05,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:19:05,867 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;@2b829026, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:19:05,867 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:19:05,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 03:19:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:05,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:05,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:05,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:05,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:05,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1103952823, now seen corresponding path program 1 times [2024-11-22 03:19:05,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:05,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240801916] [2024-11-22 03:19:05,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:05,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:06,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:06,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240801916] [2024-11-22 03:19:06,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240801916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:06,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:06,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:19:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604635002] [2024-11-22 03:19:06,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:06,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:19:06,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:06,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:19:06,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:19:06,305 INFO L87 Difference]: Start difference. First operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:06,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:06,435 INFO L93 Difference]: Finished difference Result 4784 states and 8825 transitions. [2024-11-22 03:19:06,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:19:06,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:06,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:06,461 INFO L225 Difference]: With dead ends: 4784 [2024-11-22 03:19:06,462 INFO L226 Difference]: Without dead ends: 2329 [2024-11-22 03:19:06,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:19:06,475 INFO L432 NwaCegarLoop]: 4339 mSDtfsCounter, 310 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:06,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 8361 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:19:06,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-11-22 03:19:06,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2024-11-22 03:19:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2302 states have (on average 1.8388357949609035) internal successors, (4233), 2304 states have internal predecessors, (4233), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 03:19:06,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4271 transitions. [2024-11-22 03:19:06,604 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4271 transitions. Word has length 101 [2024-11-22 03:19:06,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:06,608 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4271 transitions. [2024-11-22 03:19:06,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:06,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4271 transitions. [2024-11-22 03:19:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:06,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:06,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:06,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:19:06,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:06,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:06,616 INFO L85 PathProgramCache]: Analyzing trace with hash -773110407, now seen corresponding path program 1 times [2024-11-22 03:19:06,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:06,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551374083] [2024-11-22 03:19:06,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:06,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:06,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:06,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551374083] [2024-11-22 03:19:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551374083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:19:06,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950555926] [2024-11-22 03:19:06,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:06,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:19:06,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:06,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:19:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:19:06,843 INFO L87 Difference]: Start difference. First operand 2329 states and 4271 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:07,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:07,266 INFO L93 Difference]: Finished difference Result 2739 states and 4899 transitions. [2024-11-22 03:19:07,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:19:07,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:07,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:07,278 INFO L225 Difference]: With dead ends: 2739 [2024-11-22 03:19:07,279 INFO L226 Difference]: Without dead ends: 2544 [2024-11-22 03:19:07,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:07,282 INFO L432 NwaCegarLoop]: 4201 mSDtfsCounter, 4519 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 12725 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:07,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 12725 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:19:07,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-22 03:19:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2529. [2024-11-22 03:19:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2481 states have (on average 1.8170092704554615) internal successors, (4508), 2484 states have internal predecessors, (4508), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-22 03:19:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 4575 transitions. [2024-11-22 03:19:07,448 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 4575 transitions. Word has length 101 [2024-11-22 03:19:07,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:07,448 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 4575 transitions. [2024-11-22 03:19:07,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:07,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 4575 transitions. [2024-11-22 03:19:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:07,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:07,452 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:07,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:19:07,452 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:07,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:07,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972285, now seen corresponding path program 1 times [2024-11-22 03:19:07,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:07,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901216522] [2024-11-22 03:19:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:07,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:07,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:07,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901216522] [2024-11-22 03:19:07,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901216522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:07,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:07,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:07,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190912825] [2024-11-22 03:19:07,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:07,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:07,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:07,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:07,645 INFO L87 Difference]: Start difference. First operand 2529 states and 4575 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:08,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:08,223 INFO L93 Difference]: Finished difference Result 3174 states and 5568 transitions. [2024-11-22 03:19:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:08,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:08,236 INFO L225 Difference]: With dead ends: 3174 [2024-11-22 03:19:08,237 INFO L226 Difference]: Without dead ends: 2779 [2024-11-22 03:19:08,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:08,243 INFO L432 NwaCegarLoop]: 4363 mSDtfsCounter, 4515 mSDsluCounter, 13088 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 17451 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:08,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 17451 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2024-11-22 03:19:08,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2716. [2024-11-22 03:19:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2647 states have (on average 1.797128825085002) internal successors, (4757), 2651 states have internal predecessors, (4757), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-22 03:19:08,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4855 transitions. [2024-11-22 03:19:08,336 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4855 transitions. Word has length 101 [2024-11-22 03:19:08,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:08,336 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4855 transitions. [2024-11-22 03:19:08,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:08,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4855 transitions. [2024-11-22 03:19:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:08,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:08,342 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:08,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:19:08,343 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:08,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash -74158661, now seen corresponding path program 1 times [2024-11-22 03:19:08,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:08,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110574549] [2024-11-22 03:19:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:08,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:08,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:08,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:08,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110574549] [2024-11-22 03:19:08,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110574549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:08,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:08,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:08,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241479085] [2024-11-22 03:19:08,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:08,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:08,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:08,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:08,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:08,539 INFO L87 Difference]: Start difference. First operand 2716 states and 4855 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:09,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:09,079 INFO L93 Difference]: Finished difference Result 3755 states and 6447 transitions. [2024-11-22 03:19:09,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:09,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:09,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:09,094 INFO L225 Difference]: With dead ends: 3755 [2024-11-22 03:19:09,095 INFO L226 Difference]: Without dead ends: 3173 [2024-11-22 03:19:09,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:09,101 INFO L432 NwaCegarLoop]: 4355 mSDtfsCounter, 4507 mSDsluCounter, 13066 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 17421 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:09,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 17421 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-22 03:19:09,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3108. [2024-11-22 03:19:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2995 states have (on average 1.7642737896494156) internal successors, (5284), 3003 states have internal predecessors, (5284), 75 states have call successors, (75), 30 states have call predecessors, (75), 36 states have return successors, (91), 78 states have call predecessors, (91), 75 states have call successors, (91) [2024-11-22 03:19:09,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 5450 transitions. [2024-11-22 03:19:09,199 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 5450 transitions. Word has length 101 [2024-11-22 03:19:09,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:09,200 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 5450 transitions. [2024-11-22 03:19:09,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:09,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 5450 transitions. [2024-11-22 03:19:09,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:09,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:09,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:09,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:19:09,203 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:09,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:09,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1492599289, now seen corresponding path program 1 times [2024-11-22 03:19:09,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:09,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170886054] [2024-11-22 03:19:09,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:09,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:09,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:09,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:09,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170886054] [2024-11-22 03:19:09,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170886054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:09,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:09,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489963479] [2024-11-22 03:19:09,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:09,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:09,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:09,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:09,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:09,333 INFO L87 Difference]: Start difference. First operand 3108 states and 5450 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:09,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:09,885 INFO L93 Difference]: Finished difference Result 4995 states and 8364 transitions. [2024-11-22 03:19:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:09,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:09,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:09,904 INFO L225 Difference]: With dead ends: 4995 [2024-11-22 03:19:09,904 INFO L226 Difference]: Without dead ends: 4021 [2024-11-22 03:19:09,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:09,910 INFO L432 NwaCegarLoop]: 4352 mSDtfsCounter, 4502 mSDsluCounter, 13057 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 17409 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:09,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4515 Valid, 17409 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:09,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2024-11-22 03:19:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 3943. [2024-11-22 03:19:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3736 states have (on average 1.7184154175588866) internal successors, (6420), 3758 states have internal predecessors, (6420), 131 states have call successors, (131), 54 states have call predecessors, (131), 74 states have return successors, (195), 138 states have call predecessors, (195), 131 states have call successors, (195) [2024-11-22 03:19:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 6746 transitions. [2024-11-22 03:19:10,065 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 6746 transitions. Word has length 101 [2024-11-22 03:19:10,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:10,065 INFO L471 AbstractCegarLoop]: Abstraction has 3943 states and 6746 transitions. [2024-11-22 03:19:10,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 6746 transitions. [2024-11-22 03:19:10,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:10,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:10,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:10,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:19:10,069 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:10,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:10,069 INFO L85 PathProgramCache]: Analyzing trace with hash 434761211, now seen corresponding path program 1 times [2024-11-22 03:19:10,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:10,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181550938] [2024-11-22 03:19:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:10,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:10,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:10,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181550938] [2024-11-22 03:19:10,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181550938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:10,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:10,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:10,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545085565] [2024-11-22 03:19:10,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:10,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:10,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:10,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:10,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:10,195 INFO L87 Difference]: Start difference. First operand 3943 states and 6746 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:10,838 INFO L93 Difference]: Finished difference Result 7660 states and 12610 transitions. [2024-11-22 03:19:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:10,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:10,860 INFO L225 Difference]: With dead ends: 7660 [2024-11-22 03:19:10,860 INFO L226 Difference]: Without dead ends: 5851 [2024-11-22 03:19:10,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:10,870 INFO L432 NwaCegarLoop]: 4349 mSDtfsCounter, 4497 mSDsluCounter, 13048 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 17397 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:10,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4510 Valid, 17397 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:10,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2024-11-22 03:19:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5748. [2024-11-22 03:19:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 5335 states have (on average 1.6689784442361761) internal successors, (8904), 5403 states have internal predecessors, (8904), 243 states have call successors, (243), 102 states have call predecessors, (243), 168 states have return successors, (499), 258 states have call predecessors, (499), 243 states have call successors, (499) [2024-11-22 03:19:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 9646 transitions. [2024-11-22 03:19:11,027 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 9646 transitions. Word has length 101 [2024-11-22 03:19:11,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:11,028 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 9646 transitions. [2024-11-22 03:19:11,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 9646 transitions. [2024-11-22 03:19:11,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:11,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:11,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:11,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:19:11,033 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:11,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:11,033 INFO L85 PathProgramCache]: Analyzing trace with hash -707741255, now seen corresponding path program 1 times [2024-11-22 03:19:11,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:11,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303050445] [2024-11-22 03:19:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:11,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:11,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:11,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303050445] [2024-11-22 03:19:11,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303050445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:11,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:11,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:11,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312808343] [2024-11-22 03:19:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:11,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:11,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:11,142 INFO L87 Difference]: Start difference. First operand 5748 states and 9646 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:11,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:11,710 INFO L93 Difference]: Finished difference Result 14111 states and 23277 transitions. [2024-11-22 03:19:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:11,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:11,751 INFO L225 Difference]: With dead ends: 14111 [2024-11-22 03:19:11,752 INFO L226 Difference]: Without dead ends: 10497 [2024-11-22 03:19:11,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:11,768 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 4681 mSDsluCounter, 12709 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 16917 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:11,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4700 Valid, 16917 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:19:11,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2024-11-22 03:19:12,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 9661. [2024-11-22 03:19:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 8798 states have (on average 1.6335530802455103) internal successors, (14372), 9012 states have internal predecessors, (14372), 451 states have call successors, (451), 198 states have call predecessors, (451), 410 states have return successors, (1475), 482 states have call predecessors, (1475), 451 states have call successors, (1475) [2024-11-22 03:19:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 16298 transitions. [2024-11-22 03:19:12,141 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 16298 transitions. Word has length 101 [2024-11-22 03:19:12,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:12,142 INFO L471 AbstractCegarLoop]: Abstraction has 9661 states and 16298 transitions. [2024-11-22 03:19:12,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 16298 transitions. [2024-11-22 03:19:12,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:12,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:12,148 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:12,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:19:12,148 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:12,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash -467501509, now seen corresponding path program 1 times [2024-11-22 03:19:12,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:12,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596745245] [2024-11-22 03:19:12,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:12,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:12,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:12,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596745245] [2024-11-22 03:19:12,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596745245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:12,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:12,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:12,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528002293] [2024-11-22 03:19:12,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:12,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:12,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:12,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:12,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:12,224 INFO L87 Difference]: Start difference. First operand 9661 states and 16298 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:13,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:13,134 INFO L93 Difference]: Finished difference Result 27202 states and 46795 transitions. [2024-11-22 03:19:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:13,215 INFO L225 Difference]: With dead ends: 27202 [2024-11-22 03:19:13,215 INFO L226 Difference]: Without dead ends: 19675 [2024-11-22 03:19:13,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:13,251 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 4529 mSDsluCounter, 13016 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4541 SdHoareTripleChecker+Valid, 17356 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:13,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4541 Valid, 17356 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19675 states. [2024-11-22 03:19:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19675 to 18170. [2024-11-22 03:19:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18170 states, 16261 states have (on average 1.6173667056146608) internal successors, (26300), 16929 states have internal predecessors, (26300), 851 states have call successors, (851), 390 states have call predecessors, (851), 1056 states have return successors, (4947), 914 states have call predecessors, (4947), 851 states have call successors, (4947) [2024-11-22 03:19:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18170 states to 18170 states and 32098 transitions. [2024-11-22 03:19:14,055 INFO L78 Accepts]: Start accepts. Automaton has 18170 states and 32098 transitions. Word has length 101 [2024-11-22 03:19:14,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:14,056 INFO L471 AbstractCegarLoop]: Abstraction has 18170 states and 32098 transitions. [2024-11-22 03:19:14,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18170 states and 32098 transitions. [2024-11-22 03:19:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:14,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:14,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:14,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:19:14,066 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:14,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:14,066 INFO L85 PathProgramCache]: Analyzing trace with hash 371532153, now seen corresponding path program 1 times [2024-11-22 03:19:14,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:14,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257239953] [2024-11-22 03:19:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:14,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:14,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:14,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257239953] [2024-11-22 03:19:14,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257239953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:14,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:14,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:14,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28154679] [2024-11-22 03:19:14,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:14,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:14,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:14,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:14,140 INFO L87 Difference]: Start difference. First operand 18170 states and 32098 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:15,779 INFO L93 Difference]: Finished difference Result 55681 states and 104417 transitions. [2024-11-22 03:19:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:15,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:15,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:15,989 INFO L225 Difference]: With dead ends: 55681 [2024-11-22 03:19:15,989 INFO L226 Difference]: Without dead ends: 39645 [2024-11-22 03:19:16,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:16,068 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4586 mSDsluCounter, 13010 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4605 SdHoareTripleChecker+Valid, 17348 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:16,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4605 Valid, 17348 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:19:16,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39645 states. [2024-11-22 03:19:17,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39645 to 37439. [2024-11-22 03:19:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37439 states, 32984 states have (on average 1.6138733931603202) internal successors, (53232), 35046 states have internal predecessors, (53232), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 2834 states have return successors, (18003), 1746 states have call predecessors, (18003), 1619 states have call successors, (18003) [2024-11-22 03:19:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37439 states to 37439 states and 72854 transitions. [2024-11-22 03:19:18,220 INFO L78 Accepts]: Start accepts. Automaton has 37439 states and 72854 transitions. Word has length 101 [2024-11-22 03:19:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:18,221 INFO L471 AbstractCegarLoop]: Abstraction has 37439 states and 72854 transitions. [2024-11-22 03:19:18,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 37439 states and 72854 transitions. [2024-11-22 03:19:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:18,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:18,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:18,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:19:18,241 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:18,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash 398597755, now seen corresponding path program 1 times [2024-11-22 03:19:18,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:18,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199664327] [2024-11-22 03:19:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:18,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:18,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:18,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199664327] [2024-11-22 03:19:18,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199664327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:18,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:18,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:18,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094502401] [2024-11-22 03:19:18,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:18,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:18,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:18,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:18,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:18,327 INFO L87 Difference]: Start difference. First operand 37439 states and 72854 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:21,788 INFO L93 Difference]: Finished difference Result 119548 states and 258559 transitions. [2024-11-22 03:19:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:22,515 INFO L225 Difference]: With dead ends: 119548 [2024-11-22 03:19:22,517 INFO L226 Difference]: Without dead ends: 84243 [2024-11-22 03:19:22,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:22,610 INFO L432 NwaCegarLoop]: 4335 mSDtfsCounter, 4551 mSDsluCounter, 13001 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 17336 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:22,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 17336 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:19:22,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84243 states. [2024-11-22 03:19:28,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84243 to 80888. [2024-11-22 03:19:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80888 states, 69947 states have (on average 1.6117345990535692) internal successors, (112736), 76255 states have internal predecessors, (112736), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-22 03:19:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80888 states to 80888 states and 184454 transitions. [2024-11-22 03:19:29,736 INFO L78 Accepts]: Start accepts. Automaton has 80888 states and 184454 transitions. Word has length 101 [2024-11-22 03:19:29,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:29,737 INFO L471 AbstractCegarLoop]: Abstraction has 80888 states and 184454 transitions. [2024-11-22 03:19:29,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:29,737 INFO L276 IsEmpty]: Start isEmpty. Operand 80888 states and 184454 transitions. [2024-11-22 03:19:29,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:29,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:29,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:29,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:19:29,779 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:29,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1678739143, now seen corresponding path program 1 times [2024-11-22 03:19:29,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:29,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542855215] [2024-11-22 03:19:29,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:29,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:29,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:29,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542855215] [2024-11-22 03:19:29,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542855215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:29,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:29,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:19:29,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141106487] [2024-11-22 03:19:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:29,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:19:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:19:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:19:29,889 INFO L87 Difference]: Start difference. First operand 80888 states and 184454 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:35,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:35,441 INFO L93 Difference]: Finished difference Result 172768 states and 437545 transitions. [2024-11-22 03:19:35,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:19:35,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-22 03:19:35,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:36,163 INFO L225 Difference]: With dead ends: 172768 [2024-11-22 03:19:36,163 INFO L226 Difference]: Without dead ends: 94014 [2024-11-22 03:19:36,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:36,457 INFO L432 NwaCegarLoop]: 4170 mSDtfsCounter, 4351 mSDsluCounter, 8253 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 12423 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:36,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 12423 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 03:19:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94014 states. [2024-11-22 03:19:44,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94014 to 80888. [2024-11-22 03:19:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80888 states, 69947 states have (on average 1.6080603885799247) internal successors, (112479), 76255 states have internal predecessors, (112479), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-22 03:19:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80888 states to 80888 states and 184197 transitions. [2024-11-22 03:19:44,643 INFO L78 Accepts]: Start accepts. Automaton has 80888 states and 184197 transitions. Word has length 101 [2024-11-22 03:19:44,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:44,644 INFO L471 AbstractCegarLoop]: Abstraction has 80888 states and 184197 transitions. [2024-11-22 03:19:44,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 80888 states and 184197 transitions. [2024-11-22 03:19:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:19:44,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:44,993 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:44,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:19:44,994 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:44,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash -791516297, now seen corresponding path program 1 times [2024-11-22 03:19:44,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:44,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218452690] [2024-11-22 03:19:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:44,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:45,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:45,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:45,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218452690] [2024-11-22 03:19:45,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218452690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:45,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:45,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 03:19:45,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96634689] [2024-11-22 03:19:45,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:45,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 03:19:45,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:45,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 03:19:45,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 03:19:45,082 INFO L87 Difference]: Start difference. First operand 80888 states and 184197 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)