./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_label45+token_ring.12.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_label45+token_ring.12.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 e80d4f8b0edf8f5c4127bb92c8390ef5eb0df30ae80a58b9f994310767a3efd9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:29:30,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:29:30,951 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:29:30,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:29:30,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:29:30,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:29:30,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:29:30,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:29:30,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:29:30,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:29:30,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:29:30,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:29:30,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:29:30,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:29:30,986 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:29:30,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:29:30,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:29:30,986 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:29:30,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:29:30,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:29:30,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:29:30,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:29:30,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:29:30,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:29:30,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:29:30,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:29:30,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:29:30,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:29:30,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:29:30,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:29:30,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:29:30,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:29:30,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:29:30,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:29:30,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:29:30,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:29:30,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:29:30,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:29:30,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:29:30,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:29:30,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:29:30,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:29:30,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e80d4f8b0edf8f5c4127bb92c8390ef5eb0df30ae80a58b9f994310767a3efd9 [2024-10-14 04:29:31,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:29:31,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:29:31,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:29:31,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:29:31,227 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:29:31,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.12.cil-1.c [2024-10-14 04:29:32,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:29:32,980 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:29:32,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.12.cil-1.c [2024-10-14 04:29:33,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee545d9cc/f22b707576e44e2f950fefab7a58705d/FLAGcf273f3d0 [2024-10-14 04:29:33,059 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee545d9cc/f22b707576e44e2f950fefab7a58705d [2024-10-14 04:29:33,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:29:33,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:29:33,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:29:33,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:29:33,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:29:33,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:29:33" (1/1) ... [2024-10-14 04:29:33,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59dfdb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:33, skipping insertion in model container [2024-10-14 04:29:33,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:29:33" (1/1) ... [2024-10-14 04:29:33,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:29:34,424 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.12.cil-1.c[380323,380336] [2024-10-14 04:29:34,453 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.12.cil-1.c[383339,383352] [2024-10-14 04:29:34,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:29:34,689 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:29:35,265 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.12.cil-1.c[380323,380336] [2024-10-14 04:29:35,269 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.12.cil-1.c[383339,383352] [2024-10-14 04:29:35,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:29:35,340 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:29:35,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35 WrapperNode [2024-10-14 04:29:35,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:29:35,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:29:35,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:29:35,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:29:35,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:35,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:35,697 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13239 [2024-10-14 04:29:35,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:29:35,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:29:35,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:29:35,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:29:35,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:35,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:35,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:35,947 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 04:29:35,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:35,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:36,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:36,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:36,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:36,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:36,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:29:36,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:29:36,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:29:36,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:29:36,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (1/1) ... [2024-10-14 04:29:36,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:29:36,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:29:36,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:29:36,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:29:36,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:29:36,482 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:29:36,482 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:29:36,482 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:29:36,482 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:29:36,483 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:29:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:29:36,484 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-14 04:29:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-14 04:29:36,484 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:29:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:29:36,484 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:29:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:29:36,484 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:29:36,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:29:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:29:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:29:36,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:29:36,604 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:29:36,606 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:29:42,782 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-10-14 04:29:42,782 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:29:42,884 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:29:42,884 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-14 04:29:42,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:29:42 BoogieIcfgContainer [2024-10-14 04:29:42,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:29:42,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:29:42,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:29:42,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:29:42,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:29:33" (1/3) ... [2024-10-14 04:29:42,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b36f876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:29:42, skipping insertion in model container [2024-10-14 04:29:42,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:29:35" (2/3) ... [2024-10-14 04:29:42,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b36f876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:29:42, skipping insertion in model container [2024-10-14 04:29:42,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:29:42" (3/3) ... [2024-10-14 04:29:42,893 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.12.cil-1.c [2024-10-14 04:29:42,907 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:29:42,908 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:29:43,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:29:43,020 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;@4226a038, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:29:43,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:29:43,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 2479 states, 2441 states have (on average 1.8758705448586646) internal successors, (4579), 2446 states have internal predecessors, (4579), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 04:29:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:29:43,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:29:43,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:29:43,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:29:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:29:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -30135490, now seen corresponding path program 1 times [2024-10-14 04:29:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:29:43,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84545751] [2024-10-14 04:29:43,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:29:43,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:29:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:43,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:29:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:43,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:29:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:43,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:29:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:43,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:29:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:43,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:29:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:29:43,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:29:43,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84545751] [2024-10-14 04:29:43,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84545751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:29:43,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:29:43,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:29:43,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122481341] [2024-10-14 04:29:43,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:29:43,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:29:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:29:43,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:29:43,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:29:43,621 INFO L87 Difference]: Start difference. First operand has 2479 states, 2441 states have (on average 1.8758705448586646) internal successors, (4579), 2446 states have internal predecessors, (4579), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:29:45,509 INFO L93 Difference]: Finished difference Result 5083 states and 9494 transitions. [2024-10-14 04:29:45,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:29:45,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:29:45,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:29:45,534 INFO L225 Difference]: With dead ends: 5083 [2024-10-14 04:29:45,535 INFO L226 Difference]: Without dead ends: 2604 [2024-10-14 04:29:45,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:29:45,544 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 993 mSDsluCounter, 12222 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 16490 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:29:45,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 16490 Invalid, 1131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:29:45,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-10-14 04:29:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2474. [2024-10-14 04:29:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2438 states have (on average 1.8371616078753077) internal successors, (4479), 2441 states have internal predecessors, (4479), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 04:29:45,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 4533 transitions. [2024-10-14 04:29:45,651 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 4533 transitions. Word has length 162 [2024-10-14 04:29:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:29:45,652 INFO L471 AbstractCegarLoop]: Abstraction has 2474 states and 4533 transitions. [2024-10-14 04:29:45,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 4533 transitions. [2024-10-14 04:29:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:29:45,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:29:45,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:29:45,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:29:45,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:29:45,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:29:45,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1739336124, now seen corresponding path program 1 times [2024-10-14 04:29:45,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:29:45,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158882108] [2024-10-14 04:29:45,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:29:45,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:29:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:45,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:29:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:45,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:29:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:45,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:29:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:45,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:29:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:45,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:29:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:29:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:29:45,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158882108] [2024-10-14 04:29:45,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158882108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:29:45,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:29:45,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:29:45,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069547631] [2024-10-14 04:29:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:29:45,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:29:45,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:29:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:29:45,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:29:45,866 INFO L87 Difference]: Start difference. First operand 2474 states and 4533 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:29:47,421 INFO L93 Difference]: Finished difference Result 2944 states and 5318 transitions. [2024-10-14 04:29:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:29:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:29:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:29:47,431 INFO L225 Difference]: With dead ends: 2944 [2024-10-14 04:29:47,431 INFO L226 Difference]: Without dead ends: 2604 [2024-10-14 04:29:47,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:29:47,435 INFO L432 NwaCegarLoop]: 4264 mSDtfsCounter, 981 mSDsluCounter, 12213 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 16477 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:29:47,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 16477 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 04:29:47,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-10-14 04:29:47,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2474. [2024-10-14 04:29:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2438 states have (on average 1.8367514356029533) internal successors, (4478), 2441 states have internal predecessors, (4478), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 04:29:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 4532 transitions. [2024-10-14 04:29:47,510 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 4532 transitions. Word has length 162 [2024-10-14 04:29:47,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:29:47,512 INFO L471 AbstractCegarLoop]: Abstraction has 2474 states and 4532 transitions. [2024-10-14 04:29:47,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:47,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 4532 transitions. [2024-10-14 04:29:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:29:47,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:29:47,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:29:47,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:29:47,515 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:29:47,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:29:47,516 INFO L85 PathProgramCache]: Analyzing trace with hash -191789510, now seen corresponding path program 1 times [2024-10-14 04:29:47,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:29:47,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474414331] [2024-10-14 04:29:47,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:29:47,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:29:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:47,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:29:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:47,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:29:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:47,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:29:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:47,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:29:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:47,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:29:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:29:47,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:29:47,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474414331] [2024-10-14 04:29:47,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474414331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:29:47,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:29:47,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:29:47,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667030458] [2024-10-14 04:29:47,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:29:47,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:29:47,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:29:47,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:29:47,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:29:47,855 INFO L87 Difference]: Start difference. First operand 2474 states and 4532 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:50,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:29:50,387 INFO L93 Difference]: Finished difference Result 3423 states and 6122 transitions. [2024-10-14 04:29:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:29:50,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:29:50,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:29:50,397 INFO L225 Difference]: With dead ends: 3423 [2024-10-14 04:29:50,398 INFO L226 Difference]: Without dead ends: 3088 [2024-10-14 04:29:50,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:29:50,400 INFO L432 NwaCegarLoop]: 4283 mSDtfsCounter, 5449 mSDsluCounter, 12796 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 17079 SdHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:29:50,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 17079 Invalid, 2468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 04:29:50,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2024-10-14 04:29:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2827. [2024-10-14 04:29:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2763 states have (on average 1.8154180238870792) internal successors, (5016), 2767 states have internal predecessors, (5016), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-10-14 04:29:50,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 5115 transitions. [2024-10-14 04:29:50,466 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 5115 transitions. Word has length 162 [2024-10-14 04:29:50,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:29:50,466 INFO L471 AbstractCegarLoop]: Abstraction has 2827 states and 5115 transitions. [2024-10-14 04:29:50,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:50,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 5115 transitions. [2024-10-14 04:29:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:29:50,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:29:50,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:29:50,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:29:50,468 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:29:50,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:29:50,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1897809402, now seen corresponding path program 1 times [2024-10-14 04:29:50,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:29:50,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772666086] [2024-10-14 04:29:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:29:50,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:29:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:50,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:29:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:50,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:29:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:50,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:29:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:50,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:29:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:50,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:29:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:29:50,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:29:50,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772666086] [2024-10-14 04:29:50,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772666086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:29:50,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:29:50,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:29:50,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016737187] [2024-10-14 04:29:50,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:29:50,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:29:50,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:29:50,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:29:50,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:29:50,695 INFO L87 Difference]: Start difference. First operand 2827 states and 5115 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:53,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:29:53,792 INFO L93 Difference]: Finished difference Result 4278 states and 7548 transitions. [2024-10-14 04:29:53,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:29:53,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:29:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:29:53,810 INFO L225 Difference]: With dead ends: 4278 [2024-10-14 04:29:53,810 INFO L226 Difference]: Without dead ends: 3590 [2024-10-14 04:29:53,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:29:53,813 INFO L432 NwaCegarLoop]: 4441 mSDtfsCounter, 5484 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3740 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5503 SdHoareTripleChecker+Valid, 21882 SdHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:29:53,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5503 Valid, 21882 Invalid, 3805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3740 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 04:29:53,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2024-10-14 04:29:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3153. [2024-10-14 04:29:53,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 3061 states have (on average 1.796798431885005) internal successors, (5500), 3066 states have internal predecessors, (5500), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-10-14 04:29:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 5643 transitions. [2024-10-14 04:29:53,916 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 5643 transitions. Word has length 162 [2024-10-14 04:29:53,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:29:53,917 INFO L471 AbstractCegarLoop]: Abstraction has 3153 states and 5643 transitions. [2024-10-14 04:29:53,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:53,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 5643 transitions. [2024-10-14 04:29:53,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:29:53,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:29:53,920 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:29:53,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:29:53,920 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:29:53,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:29:53,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1986547528, now seen corresponding path program 1 times [2024-10-14 04:29:53,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:29:53,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191550009] [2024-10-14 04:29:53,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:29:53,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:29:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:54,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:29:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:54,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:29:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:54,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:29:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:54,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:29:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:29:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:29:54,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:29:54,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191550009] [2024-10-14 04:29:54,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191550009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:29:54,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:29:54,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:29:54,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555071824] [2024-10-14 04:29:54,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:29:54,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:29:54,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:29:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:29:54,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:29:54,205 INFO L87 Difference]: Start difference. First operand 3153 states and 5643 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:57,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:29:57,021 INFO L93 Difference]: Finished difference Result 5531 states and 9624 transitions. [2024-10-14 04:29:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:29:57,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:29:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:29:57,039 INFO L225 Difference]: With dead ends: 5531 [2024-10-14 04:29:57,039 INFO L226 Difference]: Without dead ends: 4517 [2024-10-14 04:29:57,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:29:57,046 INFO L432 NwaCegarLoop]: 4241 mSDtfsCounter, 5596 mSDsluCounter, 16898 mSDsCounter, 0 mSdLazyCounter, 3099 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 21139 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:29:57,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5615 Valid, 21139 Invalid, 3206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 3099 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 04:29:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2024-10-14 04:29:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 3806. [2024-10-14 04:29:57,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3658 states have (on average 1.7684527063969382) internal successors, (6469), 3665 states have internal predecessors, (6469), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:29:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 6704 transitions. [2024-10-14 04:29:57,212 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 6704 transitions. Word has length 162 [2024-10-14 04:29:57,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:29:57,212 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 6704 transitions. [2024-10-14 04:29:57,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 6704 transitions. [2024-10-14 04:29:57,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:29:57,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:29:57,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:29:57,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:29:57,216 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:29:57,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:29:57,216 INFO L85 PathProgramCache]: Analyzing trace with hash 520549946, now seen corresponding path program 1 times [2024-10-14 04:29:57,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:29:57,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070463182] [2024-10-14 04:29:57,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:29:57,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:29:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:57,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:29:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:57,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:29:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:57,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:29:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:57,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:29:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:57,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:29:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:29:57,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:29:57,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070463182] [2024-10-14 04:29:57,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070463182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:29:57,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:29:57,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:29:57,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459022396] [2024-10-14 04:29:57,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:29:57,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:29:57,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:29:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:29:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:29:57,481 INFO L87 Difference]: Start difference. First operand 3806 states and 6704 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:59,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:29:59,346 INFO L93 Difference]: Finished difference Result 6172 states and 10676 transitions. [2024-10-14 04:29:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:29:59,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:29:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:29:59,364 INFO L225 Difference]: With dead ends: 6172 [2024-10-14 04:29:59,364 INFO L226 Difference]: Without dead ends: 4505 [2024-10-14 04:29:59,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:29:59,372 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5053 mSDsluCounter, 16637 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 20856 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:29:59,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5073 Valid, 20856 Invalid, 1977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:29:59,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4505 states. [2024-10-14 04:29:59,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4505 to 3806. [2024-10-14 04:29:59,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3658 states have (on average 1.7670858392564244) internal successors, (6464), 3665 states have internal predecessors, (6464), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:29:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 6699 transitions. [2024-10-14 04:29:59,540 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 6699 transitions. Word has length 162 [2024-10-14 04:29:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:29:59,540 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 6699 transitions. [2024-10-14 04:29:59,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:29:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 6699 transitions. [2024-10-14 04:29:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:29:59,542 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:29:59,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:29:59,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:29:59,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:29:59,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:29:59,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1615333256, now seen corresponding path program 1 times [2024-10-14 04:29:59,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:29:59,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089662201] [2024-10-14 04:29:59,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:29:59,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:29:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:59,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:29:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:59,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:29:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:59,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:29:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:59,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:29:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:59,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:29:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:29:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:29:59,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:29:59,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089662201] [2024-10-14 04:29:59,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089662201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:29:59,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:29:59,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:29:59,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166497080] [2024-10-14 04:29:59,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:29:59,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:29:59,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:29:59,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:29:59,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:29:59,754 INFO L87 Difference]: Start difference. First operand 3806 states and 6699 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:01,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:01,189 INFO L93 Difference]: Finished difference Result 6161 states and 10640 transitions. [2024-10-14 04:30:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:30:01,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:01,212 INFO L225 Difference]: With dead ends: 6161 [2024-10-14 04:30:01,212 INFO L226 Difference]: Without dead ends: 4494 [2024-10-14 04:30:01,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:30:01,222 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5203 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 16728 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:01,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 16728 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:30:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2024-10-14 04:30:01,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 3806. [2024-10-14 04:30:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3658 states have (on average 1.7657189721159103) internal successors, (6459), 3665 states have internal predecessors, (6459), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:30:01,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 6694 transitions. [2024-10-14 04:30:01,342 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 6694 transitions. Word has length 162 [2024-10-14 04:30:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:01,342 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 6694 transitions. [2024-10-14 04:30:01,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 6694 transitions. [2024-10-14 04:30:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:01,347 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:01,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:01,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:30:01,347 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:01,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:01,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1197444554, now seen corresponding path program 1 times [2024-10-14 04:30:01,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:01,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423438925] [2024-10-14 04:30:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:01,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:01,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:01,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:01,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:01,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:01,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:01,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:01,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423438925] [2024-10-14 04:30:01,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423438925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:01,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:01,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:01,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180582440] [2024-10-14 04:30:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:01,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:01,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:01,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:01,567 INFO L87 Difference]: Start difference. First operand 3806 states and 6694 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:04,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:04,505 INFO L93 Difference]: Finished difference Result 7915 states and 13503 transitions. [2024-10-14 04:30:04,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:30:04,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:04,523 INFO L225 Difference]: With dead ends: 7915 [2024-10-14 04:30:04,523 INFO L226 Difference]: Without dead ends: 6248 [2024-10-14 04:30:04,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:30:04,531 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 5467 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5486 SdHoareTripleChecker+Valid, 21880 SdHoareTripleChecker+Invalid, 3728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:04,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5486 Valid, 21880 Invalid, 3728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 04:30:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2024-10-14 04:30:04,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 5127. [2024-10-14 04:30:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 4867 states have (on average 1.7279638380932814) internal successors, (8410), 4878 states have internal predecessors, (8410), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-14 04:30:04,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 8835 transitions. [2024-10-14 04:30:04,826 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 8835 transitions. Word has length 162 [2024-10-14 04:30:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:04,828 INFO L471 AbstractCegarLoop]: Abstraction has 5127 states and 8835 transitions. [2024-10-14 04:30:04,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 8835 transitions. [2024-10-14 04:30:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:04,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:04,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:04,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:30:04,831 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:04,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:04,832 INFO L85 PathProgramCache]: Analyzing trace with hash 201509048, now seen corresponding path program 1 times [2024-10-14 04:30:04,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:04,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341450891] [2024-10-14 04:30:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:04,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:04,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:04,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:05,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:05,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:05,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341450891] [2024-10-14 04:30:05,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341450891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:05,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:05,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:05,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805363090] [2024-10-14 04:30:05,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:05,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:05,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:05,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:05,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:05,023 INFO L87 Difference]: Start difference. First operand 5127 states and 8835 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:06,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:06,283 INFO L93 Difference]: Finished difference Result 9259 states and 15717 transitions. [2024-10-14 04:30:06,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:30:06,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:06,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:06,297 INFO L225 Difference]: With dead ends: 9259 [2024-10-14 04:30:06,297 INFO L226 Difference]: Without dead ends: 6271 [2024-10-14 04:30:06,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:30:06,305 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5202 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5222 SdHoareTripleChecker+Valid, 16728 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:06,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5222 Valid, 16728 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 04:30:06,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6271 states. [2024-10-14 04:30:06,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6271 to 5127. [2024-10-14 04:30:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 4867 states have (on average 1.7261146496815287) internal successors, (8401), 4878 states have internal predecessors, (8401), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-14 04:30:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 8826 transitions. [2024-10-14 04:30:06,457 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 8826 transitions. Word has length 162 [2024-10-14 04:30:06,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:06,457 INFO L471 AbstractCegarLoop]: Abstraction has 5127 states and 8826 transitions. [2024-10-14 04:30:06,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 8826 transitions. [2024-10-14 04:30:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:06,460 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:06,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:06,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:30:06,461 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:06,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:06,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1415931402, now seen corresponding path program 1 times [2024-10-14 04:30:06,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:06,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936900863] [2024-10-14 04:30:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:06,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:06,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:06,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:06,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:06,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:06,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:06,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936900863] [2024-10-14 04:30:06,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936900863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:06,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:06,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:06,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017860433] [2024-10-14 04:30:06,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:06,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:06,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:06,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:06,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:06,659 INFO L87 Difference]: Start difference. First operand 5127 states and 8826 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:09,892 INFO L93 Difference]: Finished difference Result 12710 states and 21332 transitions. [2024-10-14 04:30:09,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:30:09,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:09,928 INFO L225 Difference]: With dead ends: 12710 [2024-10-14 04:30:09,928 INFO L226 Difference]: Without dead ends: 9722 [2024-10-14 04:30:09,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:30:09,939 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 5459 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5478 SdHoareTripleChecker+Valid, 21880 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:09,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5478 Valid, 21880 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3623 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 04:30:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2024-10-14 04:30:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 7779. [2024-10-14 04:30:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7779 states, 7295 states have (on average 1.6864976010966415) internal successors, (12303), 7314 states have internal predecessors, (12303), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-10-14 04:30:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 13126 transitions. [2024-10-14 04:30:10,237 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 13126 transitions. Word has length 162 [2024-10-14 04:30:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:10,237 INFO L471 AbstractCegarLoop]: Abstraction has 7779 states and 13126 transitions. [2024-10-14 04:30:10,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 13126 transitions. [2024-10-14 04:30:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:10,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:10,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:10,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:30:10,242 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:10,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:10,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1052464904, now seen corresponding path program 1 times [2024-10-14 04:30:10,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:10,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544451711] [2024-10-14 04:30:10,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:10,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:10,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:10,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:10,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:10,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:10,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544451711] [2024-10-14 04:30:10,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544451711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:10,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:10,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:10,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015876317] [2024-10-14 04:30:10,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:10,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:10,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:10,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:10,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:10,443 INFO L87 Difference]: Start difference. First operand 7779 states and 13126 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:13,736 INFO L93 Difference]: Finished difference Result 22316 states and 37122 transitions. [2024-10-14 04:30:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:30:13,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:13,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:13,780 INFO L225 Difference]: With dead ends: 22316 [2024-10-14 04:30:13,780 INFO L226 Difference]: Without dead ends: 16676 [2024-10-14 04:30:13,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:30:13,799 INFO L432 NwaCegarLoop]: 4439 mSDtfsCounter, 5458 mSDsluCounter, 17441 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5477 SdHoareTripleChecker+Valid, 21880 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:13,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5477 Valid, 21880 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3610 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 04:30:13,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16676 states. [2024-10-14 04:30:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16676 to 13096. [2024-10-14 04:30:14,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13096 states, 12164 states have (on average 1.6544722130878) internal successors, (20125), 12199 states have internal predecessors, (20125), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-10-14 04:30:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13096 states to 13096 states and 21798 transitions. [2024-10-14 04:30:14,525 INFO L78 Accepts]: Start accepts. Automaton has 13096 states and 21798 transitions. Word has length 162 [2024-10-14 04:30:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:14,525 INFO L471 AbstractCegarLoop]: Abstraction has 13096 states and 21798 transitions. [2024-10-14 04:30:14,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 13096 states and 21798 transitions. [2024-10-14 04:30:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:14,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:14,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:14,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:30:14,535 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:14,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:14,536 INFO L85 PathProgramCache]: Analyzing trace with hash -763645514, now seen corresponding path program 1 times [2024-10-14 04:30:14,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:14,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395663173] [2024-10-14 04:30:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:14,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:14,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:14,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:14,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:14,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:14,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:14,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395663173] [2024-10-14 04:30:14,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395663173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:14,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:14,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:14,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536627016] [2024-10-14 04:30:14,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:14,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:14,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:14,794 INFO L87 Difference]: Start difference. First operand 13096 states and 21798 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:18,533 INFO L93 Difference]: Finished difference Result 41527 states and 68892 transitions. [2024-10-14 04:30:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:30:18,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:18,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:18,619 INFO L225 Difference]: With dead ends: 41527 [2024-10-14 04:30:18,619 INFO L226 Difference]: Without dead ends: 30570 [2024-10-14 04:30:18,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:30:18,650 INFO L432 NwaCegarLoop]: 4241 mSDtfsCounter, 5557 mSDsluCounter, 16898 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21139 SdHoareTripleChecker+Invalid, 3112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:18,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21139 Invalid, 3112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 04:30:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30570 states. [2024-10-14 04:30:19,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30570 to 23761. [2024-10-14 04:30:19,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23761 states, 21933 states have (on average 1.6329275520904574) internal successors, (35815), 22000 states have internal predecessors, (35815), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-14 04:30:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23761 states to 23761 states and 39350 transitions. [2024-10-14 04:30:19,864 INFO L78 Accepts]: Start accepts. Automaton has 23761 states and 39350 transitions. Word has length 162 [2024-10-14 04:30:19,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:19,864 INFO L471 AbstractCegarLoop]: Abstraction has 23761 states and 39350 transitions. [2024-10-14 04:30:19,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 23761 states and 39350 transitions. [2024-10-14 04:30:19,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:19,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:19,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:19,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:30:19,880 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:19,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:19,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1308518088, now seen corresponding path program 1 times [2024-10-14 04:30:19,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:19,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877061980] [2024-10-14 04:30:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:19,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:19,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:20,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:20,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:20,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:20,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:20,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:20,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877061980] [2024-10-14 04:30:20,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877061980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:20,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:20,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:20,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740915980] [2024-10-14 04:30:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:20,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:20,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:20,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:20,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:20,068 INFO L87 Difference]: Start difference. First operand 23761 states and 39350 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:22,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:22,610 INFO L93 Difference]: Finished difference Result 52623 states and 87952 transitions. [2024-10-14 04:30:22,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:30:22,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:22,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:22,693 INFO L225 Difference]: With dead ends: 52623 [2024-10-14 04:30:22,693 INFO L226 Difference]: Without dead ends: 31001 [2024-10-14 04:30:22,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:30:22,735 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 5055 mSDsluCounter, 16637 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 20856 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:22,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 20856 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 04:30:22,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31001 states. [2024-10-14 04:30:24,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31001 to 23761. [2024-10-14 04:30:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23761 states, 21933 states have (on average 1.62996398121552) internal successors, (35750), 22000 states have internal predecessors, (35750), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-14 04:30:24,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23761 states to 23761 states and 39285 transitions. [2024-10-14 04:30:24,228 INFO L78 Accepts]: Start accepts. Automaton has 23761 states and 39285 transitions. Word has length 162 [2024-10-14 04:30:24,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:24,229 INFO L471 AbstractCegarLoop]: Abstraction has 23761 states and 39285 transitions. [2024-10-14 04:30:24,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 23761 states and 39285 transitions. [2024-10-14 04:30:24,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:24,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:24,242 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:24,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:30:24,242 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:24,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:24,243 INFO L85 PathProgramCache]: Analyzing trace with hash -633357962, now seen corresponding path program 1 times [2024-10-14 04:30:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:24,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874382208] [2024-10-14 04:30:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:24,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:24,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:24,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:24,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:24,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:24,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:24,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:24,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874382208] [2024-10-14 04:30:24,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874382208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:24,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:24,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:24,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037214576] [2024-10-14 04:30:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:24,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:24,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:24,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:24,482 INFO L87 Difference]: Start difference. First operand 23761 states and 39285 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:30,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:30,054 INFO L93 Difference]: Finished difference Result 89546 states and 148256 transitions. [2024-10-14 04:30:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:30:30,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:30,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:30,252 INFO L225 Difference]: With dead ends: 89546 [2024-10-14 04:30:30,253 INFO L226 Difference]: Without dead ends: 67924 [2024-10-14 04:30:30,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:30:30,308 INFO L432 NwaCegarLoop]: 4437 mSDtfsCounter, 5885 mSDsluCounter, 17436 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5917 SdHoareTripleChecker+Valid, 21873 SdHoareTripleChecker+Invalid, 3600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:30,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5917 Valid, 21873 Invalid, 3600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3530 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 04:30:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67924 states. [2024-10-14 04:30:32,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67924 to 45156. [2024-10-14 04:30:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45156 states, 41600 states have (on average 1.6175961538461539) internal successors, (67292), 41731 states have internal predecessors, (67292), 2652 states have call successors, (2652), 775 states have call predecessors, (2652), 902 states have return successors, (4965), 2777 states have call predecessors, (4965), 2650 states have call successors, (4965) [2024-10-14 04:30:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45156 states to 45156 states and 74909 transitions. [2024-10-14 04:30:32,855 INFO L78 Accepts]: Start accepts. Automaton has 45156 states and 74909 transitions. Word has length 162 [2024-10-14 04:30:32,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:32,856 INFO L471 AbstractCegarLoop]: Abstraction has 45156 states and 74909 transitions. [2024-10-14 04:30:32,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:32,856 INFO L276 IsEmpty]: Start isEmpty. Operand 45156 states and 74909 transitions. [2024-10-14 04:30:32,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:32,875 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:32,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:32,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:30:32,876 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:32,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:32,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1218129612, now seen corresponding path program 1 times [2024-10-14 04:30:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:32,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772292953] [2024-10-14 04:30:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:32,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:33,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:33,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:33,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:33,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:33,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:33,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772292953] [2024-10-14 04:30:33,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772292953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:33,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:33,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:33,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241359427] [2024-10-14 04:30:33,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:33,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:33,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:33,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:33,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:33,079 INFO L87 Difference]: Start difference. First operand 45156 states and 74909 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:43,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:30:43,025 INFO L93 Difference]: Finished difference Result 174331 states and 290938 transitions. [2024-10-14 04:30:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:30:43,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2024-10-14 04:30:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:30:43,650 INFO L225 Difference]: With dead ends: 174331 [2024-10-14 04:30:43,651 INFO L226 Difference]: Without dead ends: 131314 [2024-10-14 04:30:43,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:30:43,748 INFO L432 NwaCegarLoop]: 4436 mSDtfsCounter, 5550 mSDsluCounter, 17433 mSDsCounter, 0 mSdLazyCounter, 4193 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 21869 SdHoareTripleChecker+Invalid, 4262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:30:43,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5568 Valid, 21869 Invalid, 4262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 4193 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 04:30:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131314 states. [2024-10-14 04:30:49,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131314 to 86661. [2024-10-14 04:30:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86661 states, 79713 states have (on average 1.6081442173798501) internal successors, (128190), 79972 states have internal predecessors, (128190), 5148 states have call successors, (5148), 1543 states have call predecessors, (5148), 1798 states have return successors, (11963), 5401 states have call predecessors, (11963), 5146 states have call successors, (11963) [2024-10-14 04:30:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86661 states to 86661 states and 145301 transitions. [2024-10-14 04:30:49,939 INFO L78 Accepts]: Start accepts. Automaton has 86661 states and 145301 transitions. Word has length 162 [2024-10-14 04:30:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:30:49,939 INFO L471 AbstractCegarLoop]: Abstraction has 86661 states and 145301 transitions. [2024-10-14 04:30:49,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:30:49,939 INFO L276 IsEmpty]: Start isEmpty. Operand 86661 states and 145301 transitions. [2024-10-14 04:30:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 04:30:49,972 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:30:49,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:30:49,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:30:49,973 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:30:49,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:30:49,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1652635210, now seen corresponding path program 1 times [2024-10-14 04:30:49,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:30:49,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818848253] [2024-10-14 04:30:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:30:49,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:30:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:50,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:30:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:50,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:30:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:50,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:30:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:50,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:30:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:50,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:30:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:30:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:30:50,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:30:50,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818848253] [2024-10-14 04:30:50,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818848253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:30:50,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:30:50,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:30:50,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493576458] [2024-10-14 04:30:50,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:30:50,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:30:50,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:30:50,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:30:50,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:30:50,374 INFO L87 Difference]: Start difference. First operand 86661 states and 145301 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)