./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.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 656e7d531f093f57119c43761759c34009a10647aaa5132e17630f3bef948c7c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:17:49,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:17:49,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:17:49,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:17:49,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:17:49,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:17:49,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:17:49,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:17:49,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:17:49,837 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:17:49,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:17:49,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:17:49,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:17:49,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:17:49,839 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:17:49,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:17:49,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:17:49,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:17:49,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:17:49,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:17:49,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:17:49,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:17:49,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:17:49,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:17:49,845 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:17:49,845 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:17:49,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:17:49,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:17:49,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:17:49,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:17:49,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:17:49,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:17:49,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:17:49,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:17:49,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:17:49,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:17:49,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:17:49,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:17:49,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:17:49,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:17:49,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:17:49,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:17:49,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 656e7d531f093f57119c43761759c34009a10647aaa5132e17630f3bef948c7c [2024-11-19 23:17:50,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:17:50,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:17:50,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:17:50,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:17:50,090 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:17:50,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.05.cil-1.c [2024-11-19 23:17:51,443 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:17:52,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:17:52,070 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.05.cil-1.c [2024-11-19 23:17:52,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210cc716f/3a7626f03fda471786d34a28cdfa9a02/FLAG9c9be64a0 [2024-11-19 23:17:52,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210cc716f/3a7626f03fda471786d34a28cdfa9a02 [2024-11-19 23:17:52,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:17:52,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:17:52,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:17:52,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:17:52,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:17:52,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:17:52" (1/1) ... [2024-11-19 23:17:52,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3169e99a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:52, skipping insertion in model container [2024-11-19 23:17:52,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:17:52" (1/1) ... [2024-11-19 23:17:52,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:17:53,542 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_label41+token_ring.05.cil-1.c[376251,376264] [2024-11-19 23:17:53,568 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_label41+token_ring.05.cil-1.c[383339,383352] [2024-11-19 23:17:53,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:17:53,799 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:17:54,514 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_label41+token_ring.05.cil-1.c[376251,376264] [2024-11-19 23:17:54,526 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_label41+token_ring.05.cil-1.c[383339,383352] [2024-11-19 23:17:54,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:17:54,586 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:17:54,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54 WrapperNode [2024-11-19 23:17:54,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:17:54,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:17:54,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:17:54,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:17:54,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:54,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:54,950 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-11-19 23:17:54,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:17:54,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:17:54,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:17:54,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:17:54,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:54,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,238 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]. [2024-11-19 23:17:55,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:17:55,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:17:55,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:17:55,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:17:55,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (1/1) ... [2024-11-19 23:17:55,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:17:55,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:17:55,554 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) [2024-11-19 23:17:55,557 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 [2024-11-19 23:17:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:17:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 23:17:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 23:17:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 23:17:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 23:17:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 23:17:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 23:17:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 23:17:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 23:17:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 23:17:55,601 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 23:17:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 23:17:55,601 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 23:17:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:17:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:17:55,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:17:55,699 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:17:55,702 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:18:02,233 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-19 23:18:02,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:18:02,289 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:18:02,289 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-19 23:18:02,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:18:02 BoogieIcfgContainer [2024-11-19 23:18:02,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:18:02,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:18:02,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:18:02,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:18:02,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:17:52" (1/3) ... [2024-11-19 23:18:02,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c25d4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:18:02, skipping insertion in model container [2024-11-19 23:18:02,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:17:54" (2/3) ... [2024-11-19 23:18:02,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c25d4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:18:02, skipping insertion in model container [2024-11-19 23:18:02,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:18:02" (3/3) ... [2024-11-19 23:18:02,296 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.05.cil-1.c [2024-11-19 23:18:02,308 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:18:02,308 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:18:02,395 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:18:02,401 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;@203ef209, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:18:02,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:18:02,411 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) [2024-11-19 23:18:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:02,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:02,424 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] [2024-11-19 23:18:02,424 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:02,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1103952823, now seen corresponding path program 1 times [2024-11-19 23:18:02,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:02,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054121469] [2024-11-19 23:18:02,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:02,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:02,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:02,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054121469] [2024-11-19 23:18:02,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054121469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:02,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:02,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:18:02,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48816885] [2024-11-19 23:18:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:02,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:18:02,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:18:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:18:02,886 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 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:03,790 INFO L93 Difference]: Finished difference Result 4849 states and 8937 transitions. [2024-11-19 23:18:03,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:18:03,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:03,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:03,810 INFO L225 Difference]: With dead ends: 4849 [2024-11-19 23:18:03,810 INFO L226 Difference]: Without dead ends: 2394 [2024-11-19 23:18:03,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:18:03,821 INFO L432 NwaCegarLoop]: 4222 mSDtfsCounter, 517 mSDsluCounter, 12295 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 16517 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:03,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 16517 Invalid, 539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 23:18:03,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2024-11-19 23:18:03,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2329. [2024-11-19 23:18:03,917 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) [2024-11-19 23:18:03,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4271 transitions. [2024-11-19 23:18:03,928 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4271 transitions. Word has length 101 [2024-11-19 23:18:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:03,928 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4271 transitions. [2024-11-19 23:18:03,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4271 transitions. [2024-11-19 23:18:03,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:03,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:03,932 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] [2024-11-19 23:18:03,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:18:03,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:03,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash -773110407, now seen corresponding path program 1 times [2024-11-19 23:18:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180100917] [2024-11-19 23:18:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:04,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:04,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180100917] [2024-11-19 23:18:04,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180100917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:04,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:04,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:18:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429804738] [2024-11-19 23:18:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:04,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:18:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:04,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:18:04,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:18:04,156 INFO L87 Difference]: Start difference. First operand 2329 states and 4271 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:05,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:05,417 INFO L93 Difference]: Finished difference Result 2853 states and 5090 transitions. [2024-11-19 23:18:05,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:18:05,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:05,427 INFO L225 Difference]: With dead ends: 2853 [2024-11-19 23:18:05,427 INFO L226 Difference]: Without dead ends: 2658 [2024-11-19 23:18:05,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:18:05,429 INFO L432 NwaCegarLoop]: 4137 mSDtfsCounter, 4719 mSDsluCounter, 12401 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 16538 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:05,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4731 Valid, 16538 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 23:18:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-11-19 23:18:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2529. [2024-11-19 23:18:05,480 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, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-19 23:18:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 4577 transitions. [2024-11-19 23:18:05,489 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 4577 transitions. Word has length 101 [2024-11-19 23:18:05,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:05,489 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 4577 transitions. [2024-11-19 23:18:05,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 4577 transitions. [2024-11-19 23:18:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:05,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:05,491 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] [2024-11-19 23:18:05,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:18:05,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:05,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:05,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972285, now seen corresponding path program 1 times [2024-11-19 23:18:05,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:05,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250507191] [2024-11-19 23:18:05,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:05,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:05,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:05,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:05,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:05,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:05,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:05,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:05,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250507191] [2024-11-19 23:18:05,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250507191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:05,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:05,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:05,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625638809] [2024-11-19 23:18:05,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:05,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:05,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:05,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:05,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:05,649 INFO L87 Difference]: Start difference. First operand 2529 states and 4577 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:07,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:07,174 INFO L93 Difference]: Finished difference Result 3323 states and 5813 transitions. [2024-11-19 23:18:07,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:18:07,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:07,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:07,184 INFO L225 Difference]: With dead ends: 3323 [2024-11-19 23:18:07,185 INFO L226 Difference]: Without dead ends: 2928 [2024-11-19 23:18:07,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:18:07,188 INFO L432 NwaCegarLoop]: 4269 mSDtfsCounter, 4734 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 21131 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:07,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4746 Valid, 21131 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:18:07,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2024-11-19 23:18:07,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2716. [2024-11-19 23:18:07,261 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, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-19 23:18:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4856 transitions. [2024-11-19 23:18:07,270 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4856 transitions. Word has length 101 [2024-11-19 23:18:07,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:07,271 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4856 transitions. [2024-11-19 23:18:07,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:07,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4856 transitions. [2024-11-19 23:18:07,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:07,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:07,273 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] [2024-11-19 23:18:07,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:18:07,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:07,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:07,274 INFO L85 PathProgramCache]: Analyzing trace with hash -74158661, now seen corresponding path program 1 times [2024-11-19 23:18:07,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:07,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281591029] [2024-11-19 23:18:07,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:07,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:07,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:07,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281591029] [2024-11-19 23:18:07,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281591029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:07,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:07,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:07,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137923793] [2024-11-19 23:18:07,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:07,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:07,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:07,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:07,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:07,553 INFO L87 Difference]: Start difference. First operand 2716 states and 4856 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:08,971 INFO L93 Difference]: Finished difference Result 4014 states and 6872 transitions. [2024-11-19 23:18:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:18:08,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:08,986 INFO L225 Difference]: With dead ends: 4014 [2024-11-19 23:18:08,986 INFO L226 Difference]: Without dead ends: 3432 [2024-11-19 23:18:08,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:18:08,990 INFO L432 NwaCegarLoop]: 4267 mSDtfsCounter, 4728 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:08,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 21129 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:18:08,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-19 23:18:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3094. [2024-11-19 23:18:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 2983 states have (on average 1.763995977204157) internal successors, (5262), 2989 states have internal predecessors, (5262), 75 states have call successors, (75), 30 states have call predecessors, (75), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-19 23:18:09,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 5425 transitions. [2024-11-19 23:18:09,081 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 5425 transitions. Word has length 101 [2024-11-19 23:18:09,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:09,081 INFO L471 AbstractCegarLoop]: Abstraction has 3094 states and 5425 transitions. [2024-11-19 23:18:09,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:09,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 5425 transitions. [2024-11-19 23:18:09,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:09,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:09,083 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] [2024-11-19 23:18:09,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:18:09,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:09,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1492599289, now seen corresponding path program 1 times [2024-11-19 23:18:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:09,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805656985] [2024-11-19 23:18:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:09,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:09,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:09,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:09,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:09,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805656985] [2024-11-19 23:18:09,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805656985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:09,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:09,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:09,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084723759] [2024-11-19 23:18:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:09,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:09,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:09,206 INFO L87 Difference]: Start difference. First operand 3094 states and 5425 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:10,795 INFO L93 Difference]: Finished difference Result 5354 states and 8917 transitions. [2024-11-19 23:18:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:18:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:10,811 INFO L225 Difference]: With dead ends: 5354 [2024-11-19 23:18:10,811 INFO L226 Difference]: Without dead ends: 4394 [2024-11-19 23:18:10,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:18:10,819 INFO L432 NwaCegarLoop]: 4267 mSDtfsCounter, 4727 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:10,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 21129 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:18:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2024-11-19 23:18:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3851. [2024-11-19 23:18:10,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3656 states have (on average 1.7155361050328228) internal successors, (6272), 3666 states have internal predecessors, (6272), 131 states have call successors, (131), 54 states have call predecessors, (131), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-19 23:18:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 6569 transitions. [2024-11-19 23:18:10,972 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 6569 transitions. Word has length 101 [2024-11-19 23:18:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:10,973 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 6569 transitions. [2024-11-19 23:18:10,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 6569 transitions. [2024-11-19 23:18:10,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:10,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:10,975 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] [2024-11-19 23:18:10,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:18:10,975 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:10,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash 434761211, now seen corresponding path program 1 times [2024-11-19 23:18:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:10,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902093184] [2024-11-19 23:18:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:10,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:11,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:11,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:11,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:11,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:11,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:11,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:11,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902093184] [2024-11-19 23:18:11,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902093184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:11,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:11,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:11,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540371558] [2024-11-19 23:18:11,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:11,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:11,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:11,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:11,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:11,130 INFO L87 Difference]: Start difference. First operand 3851 states and 6569 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:12,497 INFO L93 Difference]: Finished difference Result 8033 states and 13023 transitions. [2024-11-19 23:18:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:18:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:12,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:12,540 INFO L225 Difference]: With dead ends: 8033 [2024-11-19 23:18:12,541 INFO L226 Difference]: Without dead ends: 6316 [2024-11-19 23:18:12,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:18:12,549 INFO L432 NwaCegarLoop]: 4267 mSDtfsCounter, 4726 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:12,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 21129 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 23:18:12,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2024-11-19 23:18:12,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 5372. [2024-11-19 23:18:12,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5009 states have (on average 1.657416650029946) internal successors, (8302), 5027 states have internal predecessors, (8302), 243 states have call successors, (243), 102 states have call predecessors, (243), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-19 23:18:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8885 transitions. [2024-11-19 23:18:12,726 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8885 transitions. Word has length 101 [2024-11-19 23:18:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:12,726 INFO L471 AbstractCegarLoop]: Abstraction has 5372 states and 8885 transitions. [2024-11-19 23:18:12,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8885 transitions. [2024-11-19 23:18:12,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:12,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:12,730 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] [2024-11-19 23:18:12,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:18:12,730 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:12,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash -707741255, now seen corresponding path program 1 times [2024-11-19 23:18:12,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:12,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628909208] [2024-11-19 23:18:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:12,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:12,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:12,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628909208] [2024-11-19 23:18:12,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628909208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:12,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:12,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:12,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513375556] [2024-11-19 23:18:12,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:12,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:12,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:12,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:12,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:12,851 INFO L87 Difference]: Start difference. First operand 5372 states and 8885 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:14,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:14,812 INFO L93 Difference]: Finished difference Result 14656 states and 23187 transitions. [2024-11-19 23:18:14,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:18:14,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:14,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:14,852 INFO L225 Difference]: With dead ends: 14656 [2024-11-19 23:18:14,853 INFO L226 Difference]: Without dead ends: 11418 [2024-11-19 23:18:14,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:18:14,865 INFO L432 NwaCegarLoop]: 4149 mSDtfsCounter, 4988 mSDsluCounter, 16518 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 20667 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:14,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 20667 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:18:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2024-11-19 23:18:15,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8381. [2024-11-19 23:18:15,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 7698 states have (on average 1.6045726162639646) internal successors, (12352), 7732 states have internal predecessors, (12352), 451 states have call successors, (451), 198 states have call predecessors, (451), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-19 23:18:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 13529 transitions. [2024-11-19 23:18:15,363 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 13529 transitions. Word has length 101 [2024-11-19 23:18:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:15,363 INFO L471 AbstractCegarLoop]: Abstraction has 8381 states and 13529 transitions. [2024-11-19 23:18:15,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 13529 transitions. [2024-11-19 23:18:15,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:15,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:15,370 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] [2024-11-19 23:18:15,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 23:18:15,370 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:15,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:15,370 INFO L85 PathProgramCache]: Analyzing trace with hash -467501509, now seen corresponding path program 1 times [2024-11-19 23:18:15,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:15,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514295096] [2024-11-19 23:18:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:15,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:15,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514295096] [2024-11-19 23:18:15,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514295096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:15,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:15,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:15,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670733919] [2024-11-19 23:18:15,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:15,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:15,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:15,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:15,520 INFO L87 Difference]: Start difference. First operand 8381 states and 13529 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:17,761 INFO L93 Difference]: Finished difference Result 26111 states and 41017 transitions. [2024-11-19 23:18:17,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:18:17,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:17,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:17,810 INFO L225 Difference]: With dead ends: 26111 [2024-11-19 23:18:17,811 INFO L226 Difference]: Without dead ends: 19864 [2024-11-19 23:18:17,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:18:17,827 INFO L432 NwaCegarLoop]: 4264 mSDtfsCounter, 4766 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 21115 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:17,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4777 Valid, 21115 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:18:17,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19864 states. [2024-11-19 23:18:18,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19864 to 14222. [2024-11-19 23:18:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14222 states, 12915 states have (on average 1.564847077042199) internal successors, (20210), 12981 states have internal predecessors, (20210), 851 states have call successors, (851), 390 states have call predecessors, (851), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-19 23:18:18,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14222 states to 14222 states and 22705 transitions. [2024-11-19 23:18:18,378 INFO L78 Accepts]: Start accepts. Automaton has 14222 states and 22705 transitions. Word has length 101 [2024-11-19 23:18:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:18,379 INFO L471 AbstractCegarLoop]: Abstraction has 14222 states and 22705 transitions. [2024-11-19 23:18:18,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 14222 states and 22705 transitions. [2024-11-19 23:18:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:18,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:18,388 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] [2024-11-19 23:18:18,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 23:18:18,389 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:18,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash 371532153, now seen corresponding path program 1 times [2024-11-19 23:18:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:18,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114532548] [2024-11-19 23:18:18,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:18,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:18,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:18,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:18,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:18,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:18,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:18,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:18,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114532548] [2024-11-19 23:18:18,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114532548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:18,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:18,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:18,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933432149] [2024-11-19 23:18:18,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:18,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:18,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:18,510 INFO L87 Difference]: Start difference. First operand 14222 states and 22705 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:21,111 INFO L93 Difference]: Finished difference Result 47950 states and 75583 transitions. [2024-11-19 23:18:21,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:18:21,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:21,363 INFO L225 Difference]: With dead ends: 47950 [2024-11-19 23:18:21,367 INFO L226 Difference]: Without dead ends: 35862 [2024-11-19 23:18:21,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:18:21,451 INFO L432 NwaCegarLoop]: 4265 mSDtfsCounter, 4858 mSDsluCounter, 16854 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 21119 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:21,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 21119 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:18:21,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35862 states. [2024-11-19 23:18:22,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35862 to 26031. [2024-11-19 23:18:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26031 states, 23508 states have (on average 1.5404117747149906) internal successors, (36212), 23638 states have internal predecessors, (36212), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-19 23:18:22,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26031 states to 26031 states and 41765 transitions. [2024-11-19 23:18:22,862 INFO L78 Accepts]: Start accepts. Automaton has 26031 states and 41765 transitions. Word has length 101 [2024-11-19 23:18:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:22,862 INFO L471 AbstractCegarLoop]: Abstraction has 26031 states and 41765 transitions. [2024-11-19 23:18:22,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 26031 states and 41765 transitions. [2024-11-19 23:18:22,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:22,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:22,879 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] [2024-11-19 23:18:22,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 23:18:22,880 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:22,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:22,880 INFO L85 PathProgramCache]: Analyzing trace with hash 398597755, now seen corresponding path program 1 times [2024-11-19 23:18:22,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:22,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875063300] [2024-11-19 23:18:22,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:22,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:22,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:22,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:23,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:23,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:23,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:23,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:23,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875063300] [2024-11-19 23:18:23,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875063300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:23,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:23,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:23,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658811489] [2024-11-19 23:18:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:23,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:23,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:23,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:23,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:23,032 INFO L87 Difference]: Start difference. First operand 26031 states and 41765 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:27,798 INFO L93 Difference]: Finished difference Result 90861 states and 145477 transitions. [2024-11-19 23:18:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 23:18:27,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:27,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:27,988 INFO L225 Difference]: With dead ends: 90861 [2024-11-19 23:18:27,989 INFO L226 Difference]: Without dead ends: 66964 [2024-11-19 23:18:28,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:18:28,054 INFO L432 NwaCegarLoop]: 4265 mSDtfsCounter, 4824 mSDsluCounter, 16854 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 21119 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:28,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4842 Valid, 21119 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:18:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66964 states. [2024-11-19 23:18:30,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66964 to 49584. [2024-11-19 23:18:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49584 states, 44693 states have (on average 1.5277112746962611) internal successors, (68278), 44951 states have internal predecessors, (68278), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-19 23:18:31,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49584 states to 49584 states and 81277 transitions. [2024-11-19 23:18:31,164 INFO L78 Accepts]: Start accepts. Automaton has 49584 states and 81277 transitions. Word has length 101 [2024-11-19 23:18:31,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:31,164 INFO L471 AbstractCegarLoop]: Abstraction has 49584 states and 81277 transitions. [2024-11-19 23:18:31,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 49584 states and 81277 transitions. [2024-11-19 23:18:31,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:31,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:31,189 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] [2024-11-19 23:18:31,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 23:18:31,190 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:31,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1678739143, now seen corresponding path program 1 times [2024-11-19 23:18:31,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:31,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951696202] [2024-11-19 23:18:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:31,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:31,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:31,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:31,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:31,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:31,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:31,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:31,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951696202] [2024-11-19 23:18:31,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951696202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:31,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:31,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:18:31,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803018113] [2024-11-19 23:18:31,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:31,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:18:31,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:31,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:18:31,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:18:31,350 INFO L87 Difference]: Start difference. First operand 49584 states and 81277 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:35,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:35,147 INFO L93 Difference]: Finished difference Result 108888 states and 182936 transitions. [2024-11-19 23:18:35,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 23:18:35,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:35,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:18:35,425 INFO L225 Difference]: With dead ends: 108888 [2024-11-19 23:18:35,426 INFO L226 Difference]: Without dead ends: 61438 [2024-11-19 23:18:35,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:18:35,899 INFO L432 NwaCegarLoop]: 4122 mSDtfsCounter, 4533 mSDsluCounter, 16337 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 20459 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 23:18:35,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 20459 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 23:18:35,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61438 states. [2024-11-19 23:18:38,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61438 to 49584. [2024-11-19 23:18:38,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49584 states, 44693 states have (on average 1.5219609334795159) internal successors, (68021), 44951 states have internal predecessors, (68021), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-19 23:18:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49584 states to 49584 states and 81020 transitions. [2024-11-19 23:18:39,034 INFO L78 Accepts]: Start accepts. Automaton has 49584 states and 81020 transitions. Word has length 101 [2024-11-19 23:18:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:18:39,034 INFO L471 AbstractCegarLoop]: Abstraction has 49584 states and 81020 transitions. [2024-11-19 23:18:39,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand 49584 states and 81020 transitions. [2024-11-19 23:18:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:18:39,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:18:39,069 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] [2024-11-19 23:18:39,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 23:18:39,069 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:18:39,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:18:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash -791516297, now seen corresponding path program 1 times [2024-11-19 23:18:39,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:18:39,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124411480] [2024-11-19 23:18:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:18:39,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:18:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:39,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:18:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:39,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 23:18:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:39,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 23:18:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:39,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 23:18:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:39,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 23:18:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:18:39,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:18:39,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:18:39,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124411480] [2024-11-19 23:18:39,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124411480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:18:39,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:18:39,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:18:39,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903410646] [2024-11-19 23:18:39,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:18:39,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:18:39,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:18:39,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:18:39,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:18:39,187 INFO L87 Difference]: Start difference. First operand 49584 states and 81020 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:18:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:18:45,061 INFO L93 Difference]: Finished difference Result 137775 states and 222018 transitions. [2024-11-19 23:18:45,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:18:45,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-19 23:18:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.