./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:47:54,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:47:54,303 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:47:54,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:47:54,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:47:54,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:47:54,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:47:54,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:47:54,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:47:54,343 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:47:54,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:47:54,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:47:54,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:47:54,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:47:54,347 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:47:54,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:47:54,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:47:54,348 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:47:54,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:47:54,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:47:54,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:47:54,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:47:54,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:47:54,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:47:54,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:47:54,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:47:54,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:47:54,354 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:47:54,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:47:54,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:47:54,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:47:54,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:47:54,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:47:54,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:47:54,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:47:54,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:47:54,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:47:54,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:47:54,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:47:54,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:47:54,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:47:54,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:47:54,359 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c [2024-10-11 02:47:54,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:47:54,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:47:54,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:47:54,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:47:54,644 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:47:54,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c [2024-10-11 02:47:56,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:47:56,478 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:47:56,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c [2024-10-11 02:47:56,506 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0c9c7c938/814f466f422d432881b771c72848c113/FLAG23f5ae516 [2024-10-11 02:47:56,714 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0c9c7c938/814f466f422d432881b771c72848c113 [2024-10-11 02:47:56,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:47:56,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:47:56,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:47:56,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:47:56,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:47:56,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:47:56" (1/1) ... [2024-10-11 02:47:56,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6684d9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:56, skipping insertion in model container [2024-10-11 02:47:56,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:47:56" (1/1) ... [2024-10-11 02:47:56,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:47:57,336 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/product-lines/email_spec3_product27.cil.c[40661,40674] [2024-10-11 02:47:57,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:47:57,418 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:47:57,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-10-11 02:47:57,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [167] [2024-10-11 02:47:57,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [184] [2024-10-11 02:47:57,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [550] [2024-10-11 02:47:57,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [612] [2024-10-11 02:47:57,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [650] [2024-10-11 02:47:57,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1054] [2024-10-11 02:47:57,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1435] [2024-10-11 02:47:57,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1756] [2024-10-11 02:47:57,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1978] [2024-10-11 02:47:57,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1987] [2024-10-11 02:47:57,520 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/product-lines/email_spec3_product27.cil.c[40661,40674] [2024-10-11 02:47:57,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:47:57,578 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:47:57,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57 WrapperNode [2024-10-11 02:47:57,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:47:57,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:47:57,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:47:57,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:47:57,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,683 INFO L138 Inliner]: procedures = 134, calls = 215, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1103 [2024-10-11 02:47:57,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:47:57,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:47:57,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:47:57,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:47:57,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,756 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-11 02:47:57,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:47:57,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:47:57,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:47:57,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:47:57,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (1/1) ... [2024-10-11 02:47:57,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:47:57,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:47:57,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:47:57,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:47:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-10-11 02:47:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-10-11 02:47:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-10-11 02:47:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-10-11 02:47:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-11 02:47:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-11 02:47:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-10-11 02:47:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-10-11 02:47:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-11 02:47:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-11 02:47:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-11 02:47:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-11 02:47:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-11 02:47:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-11 02:47:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-11 02:47:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-11 02:47:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-11 02:47:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-11 02:47:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-11 02:47:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-11 02:47:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-11 02:47:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-11 02:47:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-11 02:47:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-11 02:47:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:47:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-11 02:47:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-11 02:47:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-11 02:47:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-11 02:47:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-10-11 02:47:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-10-11 02:47:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-11 02:47:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-11 02:47:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-11 02:47:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-11 02:47:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-11 02:47:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-11 02:47:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-11 02:47:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-11 02:47:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-11 02:47:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-11 02:47:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-11 02:47:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-11 02:47:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-11 02:47:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-11 02:47:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-11 02:47:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-11 02:47:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:47:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:47:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:47:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:47:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-11 02:47:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-11 02:47:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-10-11 02:47:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-10-11 02:47:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:47:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:47:58,162 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:47:58,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:47:59,201 INFO L? ?]: Removed 564 outVars from TransFormulas that were not future-live. [2024-10-11 02:47:59,201 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:47:59,281 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:47:59,283 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 02:47:59,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:47:59 BoogieIcfgContainer [2024-10-11 02:47:59,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:47:59,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:47:59,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:47:59,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:47:59,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:47:56" (1/3) ... [2024-10-11 02:47:59,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702a5d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:47:59, skipping insertion in model container [2024-10-11 02:47:59,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:57" (2/3) ... [2024-10-11 02:47:59,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702a5d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:47:59, skipping insertion in model container [2024-10-11 02:47:59,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:47:59" (3/3) ... [2024-10-11 02:47:59,293 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.c [2024-10-11 02:47:59,309 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:47:59,309 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:47:59,417 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:47:59,425 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;@26e40f5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:47:59,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:47:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 390 states, 297 states have (on average 1.6094276094276094) internal successors, (478), 302 states have internal predecessors, (478), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-11 02:47:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-11 02:47:59,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:47:59,463 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:47:59,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:47:59,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:47:59,470 INFO L85 PathProgramCache]: Analyzing trace with hash 615660377, now seen corresponding path program 1 times [2024-10-11 02:47:59,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:47:59,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532248344] [2024-10-11 02:47:59,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:47:59,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:47:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:48:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:48:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:48:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:48:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:48:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:48:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:48:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:48:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:48:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:48:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:48:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 02:48:00,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:00,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532248344] [2024-10-11 02:48:00,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532248344] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:48:00,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988781652] [2024-10-11 02:48:00,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:00,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:00,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:48:00,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:48:00,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:48:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:00,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 02:48:00,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:48:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 02:48:00,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:48:00,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988781652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:00,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:48:00,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-11 02:48:00,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748827871] [2024-10-11 02:48:00,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:00,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:48:00,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:48:00,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:48:00,774 INFO L87 Difference]: Start difference. First operand has 390 states, 297 states have (on average 1.6094276094276094) internal successors, (478), 302 states have internal predecessors, (478), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:00,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:00,867 INFO L93 Difference]: Finished difference Result 591 states and 912 transitions. [2024-10-11 02:48:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:48:00,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2024-10-11 02:48:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:00,896 INFO L225 Difference]: With dead ends: 591 [2024-10-11 02:48:00,896 INFO L226 Difference]: Without dead ends: 386 [2024-10-11 02:48:00,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:48:00,910 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:00,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:48:00,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-10-11 02:48:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-10-11 02:48:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 295 states have (on average 1.5966101694915253) internal successors, (471), 298 states have internal predecessors, (471), 66 states have call successors, (66), 25 states have call predecessors, (66), 24 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-10-11 02:48:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 600 transitions. [2024-10-11 02:48:00,991 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 600 transitions. Word has length 105 [2024-10-11 02:48:00,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:00,993 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 600 transitions. [2024-10-11 02:48:00,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 600 transitions. [2024-10-11 02:48:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 02:48:01,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:01,006 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:01,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 02:48:01,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-11 02:48:01,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:01,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1569228992, now seen corresponding path program 1 times [2024-10-11 02:48:01,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183757504] [2024-10-11 02:48:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:01,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:48:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:48:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:48:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:48:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:48:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:48:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:48:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:48:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:48:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:48:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:48:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 02:48:01,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:01,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183757504] [2024-10-11 02:48:01,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183757504] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:48:01,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24422730] [2024-10-11 02:48:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:01,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:01,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:48:01,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:48:01,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:48:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:01,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 02:48:01,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:48:01,930 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 02:48:01,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:48:01,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24422730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:01,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:48:01,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-11 02:48:01,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26729799] [2024-10-11 02:48:01,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:01,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:48:01,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:01,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:48:01,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:48:01,942 INFO L87 Difference]: Start difference. First operand 386 states and 600 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:02,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:02,044 INFO L93 Difference]: Finished difference Result 586 states and 892 transitions. [2024-10-11 02:48:02,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:48:02,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2024-10-11 02:48:02,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:02,049 INFO L225 Difference]: With dead ends: 586 [2024-10-11 02:48:02,053 INFO L226 Difference]: Without dead ends: 388 [2024-10-11 02:48:02,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:48:02,056 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 0 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:02,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1161 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:48:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-10-11 02:48:02,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-10-11 02:48:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 297 states have (on average 1.5925925925925926) internal successors, (473), 300 states have internal predecessors, (473), 66 states have call successors, (66), 25 states have call predecessors, (66), 24 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-10-11 02:48:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 602 transitions. [2024-10-11 02:48:02,093 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 602 transitions. Word has length 106 [2024-10-11 02:48:02,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:02,093 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 602 transitions. [2024-10-11 02:48:02,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 602 transitions. [2024-10-11 02:48:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-11 02:48:02,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:02,097 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:02,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 02:48:02,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:02,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:02,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash 929256607, now seen corresponding path program 1 times [2024-10-11 02:48:02,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:02,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121393172] [2024-10-11 02:48:02,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:02,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:48:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:48:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:48:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:48:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:48:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:48:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:48:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:48:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:48:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:48:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:48:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:48:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 02:48:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 02:48:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,644 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-11 02:48:02,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:02,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121393172] [2024-10-11 02:48:02,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121393172] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:48:02,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982003414] [2024-10-11 02:48:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:02,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:48:02,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:48:02,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 02:48:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:02,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:48:02,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:48:03,018 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-11 02:48:03,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:48:03,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982003414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:03,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:48:03,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-11 02:48:03,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744795508] [2024-10-11 02:48:03,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:03,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:48:03,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:03,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:48:03,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:48:03,025 INFO L87 Difference]: Start difference. First operand 388 states and 602 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:03,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:03,112 INFO L93 Difference]: Finished difference Result 828 states and 1303 transitions. [2024-10-11 02:48:03,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:48:03,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-10-11 02:48:03,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:03,118 INFO L225 Difference]: With dead ends: 828 [2024-10-11 02:48:03,119 INFO L226 Difference]: Without dead ends: 462 [2024-10-11 02:48:03,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:48:03,123 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 136 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:03,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1133 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:48:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-10-11 02:48:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 457. [2024-10-11 02:48:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 352 states have (on average 1.6107954545454546) internal successors, (567), 355 states have internal predecessors, (567), 80 states have call successors, (80), 25 states have call predecessors, (80), 24 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-11 02:48:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 724 transitions. [2024-10-11 02:48:03,161 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 724 transitions. Word has length 131 [2024-10-11 02:48:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:03,161 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 724 transitions. [2024-10-11 02:48:03,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 724 transitions. [2024-10-11 02:48:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 02:48:03,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:03,166 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:03,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 02:48:03,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:03,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:03,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash 669860306, now seen corresponding path program 1 times [2024-10-11 02:48:03,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:03,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018244905] [2024-10-11 02:48:03,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:03,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:48:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:48:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:48:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:48:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:48:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:48:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:48:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:48:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:48:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:48:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:48:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 02:48:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 02:48:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 02:48:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-11 02:48:03,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:03,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018244905] [2024-10-11 02:48:03,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018244905] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:48:03,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404343849] [2024-10-11 02:48:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:03,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:03,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:48:03,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:48:03,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 02:48:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:03,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 02:48:04,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:48:04,070 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:48:04,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:48:04,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404343849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:04,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:48:04,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-11 02:48:04,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645896738] [2024-10-11 02:48:04,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:04,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:48:04,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:04,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:48:04,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:48:04,076 INFO L87 Difference]: Start difference. First operand 457 states and 724 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:48:04,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:04,225 INFO L93 Difference]: Finished difference Result 909 states and 1442 transitions. [2024-10-11 02:48:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:48:04,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 132 [2024-10-11 02:48:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:04,229 INFO L225 Difference]: With dead ends: 909 [2024-10-11 02:48:04,230 INFO L226 Difference]: Without dead ends: 459 [2024-10-11 02:48:04,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:48:04,233 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 2 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:04,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2281 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:48:04,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-10-11 02:48:04,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-10-11 02:48:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 353 states have (on average 1.6090651558073654) internal successors, (568), 357 states have internal predecessors, (568), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2024-10-11 02:48:04,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 727 transitions. [2024-10-11 02:48:04,260 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 727 transitions. Word has length 132 [2024-10-11 02:48:04,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:04,262 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 727 transitions. [2024-10-11 02:48:04,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:48:04,262 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 727 transitions. [2024-10-11 02:48:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-11 02:48:04,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:04,266 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:04,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 02:48:04,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:04,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:04,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:04,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1008654336, now seen corresponding path program 1 times [2024-10-11 02:48:04,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:04,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265605192] [2024-10-11 02:48:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:04,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:48:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 02:48:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:48:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:48:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:48:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:48:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:48:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:48:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:48:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:48:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:48:04,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:04,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265605192] [2024-10-11 02:48:04,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265605192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:48:04,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753976111] [2024-10-11 02:48:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:04,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:04,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:48:04,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:48:04,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 02:48:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 02:48:05,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:48:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:48:05,115 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:48:05,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753976111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:05,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:48:05,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-11 02:48:05,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123231225] [2024-10-11 02:48:05,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:05,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:48:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:48:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:48:05,118 INFO L87 Difference]: Start difference. First operand 459 states and 727 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-11 02:48:05,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:05,257 INFO L93 Difference]: Finished difference Result 911 states and 1447 transitions. [2024-10-11 02:48:05,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:48:05,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2024-10-11 02:48:05,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:05,261 INFO L225 Difference]: With dead ends: 911 [2024-10-11 02:48:05,262 INFO L226 Difference]: Without dead ends: 461 [2024-10-11 02:48:05,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:48:05,264 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 2 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:05,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2267 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:48:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-10-11 02:48:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2024-10-11 02:48:05,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 354 states have (on average 1.6073446327683616) internal successors, (569), 359 states have internal predecessors, (569), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2024-10-11 02:48:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 733 transitions. [2024-10-11 02:48:05,284 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 733 transitions. Word has length 115 [2024-10-11 02:48:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:05,285 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 733 transitions. [2024-10-11 02:48:05,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-11 02:48:05,285 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 733 transitions. [2024-10-11 02:48:05,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-11 02:48:05,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:05,287 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:05,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 02:48:05,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:05,489 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:05,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:05,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1634900594, now seen corresponding path program 1 times [2024-10-11 02:48:05,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:05,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135287712] [2024-10-11 02:48:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:05,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 02:48:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:48:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:48:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:48:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:48:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:48:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:48:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:48:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:48:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:05,703 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:48:05,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:05,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135287712] [2024-10-11 02:48:05,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135287712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:05,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:05,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:48:05,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122659934] [2024-10-11 02:48:05,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:05,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:48:05,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:05,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:48:05,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:48:05,705 INFO L87 Difference]: Start difference. First operand 461 states and 733 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-11 02:48:08,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:08,346 INFO L93 Difference]: Finished difference Result 1082 states and 1756 transitions. [2024-10-11 02:48:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:48:08,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2024-10-11 02:48:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:08,353 INFO L225 Difference]: With dead ends: 1082 [2024-10-11 02:48:08,353 INFO L226 Difference]: Without dead ends: 640 [2024-10-11 02:48:08,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:48:08,357 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1329 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 3576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:08,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 1247 Invalid, 3576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 02:48:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-10-11 02:48:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 461. [2024-10-11 02:48:08,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 354 states have (on average 1.6073446327683616) internal successors, (569), 359 states have internal predecessors, (569), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2024-10-11 02:48:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 732 transitions. [2024-10-11 02:48:08,412 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 732 transitions. Word has length 116 [2024-10-11 02:48:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:08,413 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 732 transitions. [2024-10-11 02:48:08,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-11 02:48:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 732 transitions. [2024-10-11 02:48:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-11 02:48:08,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:08,416 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:08,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:48:08,416 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:08,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:08,417 INFO L85 PathProgramCache]: Analyzing trace with hash -92926302, now seen corresponding path program 1 times [2024-10-11 02:48:08,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:08,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885533748] [2024-10-11 02:48:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:08,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 02:48:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:48:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:48:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:48:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:48:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:48:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:48:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:48:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:48:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 02:48:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 02:48:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 02:48:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-11 02:48:08,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:08,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885533748] [2024-10-11 02:48:08,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885533748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:08,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:08,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:48:08,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008151066] [2024-10-11 02:48:08,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:08,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:48:08,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:08,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:48:08,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:48:08,676 INFO L87 Difference]: Start difference. First operand 461 states and 732 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:48:11,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:11,174 INFO L93 Difference]: Finished difference Result 1084 states and 1759 transitions. [2024-10-11 02:48:11,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:48:11,174 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-10-11 02:48:11,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:11,181 INFO L225 Difference]: With dead ends: 1084 [2024-10-11 02:48:11,181 INFO L226 Difference]: Without dead ends: 642 [2024-10-11 02:48:11,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:48:11,184 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1327 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 3565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:11,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1245 Invalid, 3565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 02:48:11,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-11 02:48:11,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 463. [2024-10-11 02:48:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 355 states have (on average 1.6056338028169015) internal successors, (570), 361 states have internal predecessors, (570), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 76 states have call predecessors, (85), 77 states have call successors, (85) [2024-10-11 02:48:11,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 735 transitions. [2024-10-11 02:48:11,221 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 735 transitions. Word has length 135 [2024-10-11 02:48:11,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:11,223 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 735 transitions. [2024-10-11 02:48:11,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:48:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 735 transitions. [2024-10-11 02:48:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-11 02:48:11,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:11,227 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:11,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 02:48:11,228 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:11,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash -923375831, now seen corresponding path program 1 times [2024-10-11 02:48:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:11,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205647743] [2024-10-11 02:48:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:11,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:48:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:48:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:48:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:48:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:48:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:48:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:48:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:48:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 02:48:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:48:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 02:48:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-11 02:48:11,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:11,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205647743] [2024-10-11 02:48:11,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205647743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:11,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:11,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:48:11,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517520618] [2024-10-11 02:48:11,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:11,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:48:11,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:11,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:48:11,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:48:11,498 INFO L87 Difference]: Start difference. First operand 463 states and 735 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:48:13,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:13,595 INFO L93 Difference]: Finished difference Result 1084 states and 1758 transitions. [2024-10-11 02:48:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 02:48:13,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 136 [2024-10-11 02:48:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:13,600 INFO L225 Difference]: With dead ends: 1084 [2024-10-11 02:48:13,600 INFO L226 Difference]: Without dead ends: 642 [2024-10-11 02:48:13,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-11 02:48:13,603 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1325 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:13,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1242 Invalid, 3558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 02:48:13,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-11 02:48:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 463. [2024-10-11 02:48:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 355 states have (on average 1.6056338028169015) internal successors, (570), 361 states have internal predecessors, (570), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 76 states have call predecessors, (85), 77 states have call successors, (85) [2024-10-11 02:48:13,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 735 transitions. [2024-10-11 02:48:13,640 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 735 transitions. Word has length 136 [2024-10-11 02:48:13,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:13,640 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 735 transitions. [2024-10-11 02:48:13,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-11 02:48:13,640 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 735 transitions. [2024-10-11 02:48:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-11 02:48:13,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:13,643 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:13,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:48:13,643 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:13,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:13,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1484276503, now seen corresponding path program 1 times [2024-10-11 02:48:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:13,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366269034] [2024-10-11 02:48:13,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:13,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:48:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:48:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:48:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:48:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:48:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:48:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:48:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:48:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:13,910 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:48:13,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:13,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366269034] [2024-10-11 02:48:13,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366269034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:13,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:13,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 02:48:13,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644941665] [2024-10-11 02:48:13,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:13,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 02:48:13,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:13,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 02:48:13,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:48:13,914 INFO L87 Difference]: Start difference. First operand 463 states and 735 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-11 02:48:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:16,643 INFO L93 Difference]: Finished difference Result 1082 states and 1753 transitions. [2024-10-11 02:48:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:48:16,644 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-10-11 02:48:16,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:16,649 INFO L225 Difference]: With dead ends: 1082 [2024-10-11 02:48:16,649 INFO L226 Difference]: Without dead ends: 642 [2024-10-11 02:48:16,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-11 02:48:16,652 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1330 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5098 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 5587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 5098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:16,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1728 Invalid, 5587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 5098 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 02:48:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-11 02:48:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 463. [2024-10-11 02:48:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 355 states have (on average 1.6056338028169015) internal successors, (570), 361 states have internal predecessors, (570), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2024-10-11 02:48:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 734 transitions. [2024-10-11 02:48:16,689 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 734 transitions. Word has length 118 [2024-10-11 02:48:16,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:16,690 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 734 transitions. [2024-10-11 02:48:16,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-11 02:48:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 734 transitions. [2024-10-11 02:48:16,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 02:48:16,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:16,693 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:16,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 02:48:16,693 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:16,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1098031065, now seen corresponding path program 2 times [2024-10-11 02:48:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160866584] [2024-10-11 02:48:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:48:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:48:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:48:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:48:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:48:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:48:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:48:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 02:48:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:16,928 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:48:16,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:16,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160866584] [2024-10-11 02:48:16,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160866584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:16,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:16,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 02:48:16,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717734868] [2024-10-11 02:48:16,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:16,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 02:48:16,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:16,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 02:48:16,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:48:16,931 INFO L87 Difference]: Start difference. First operand 463 states and 734 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-11 02:48:19,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:19,501 INFO L93 Difference]: Finished difference Result 1084 states and 1759 transitions. [2024-10-11 02:48:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:48:19,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 119 [2024-10-11 02:48:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:19,508 INFO L225 Difference]: With dead ends: 1084 [2024-10-11 02:48:19,508 INFO L226 Difference]: Without dead ends: 644 [2024-10-11 02:48:19,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-11 02:48:19,511 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1323 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5160 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 5632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 5160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:19,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1729 Invalid, 5632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 5160 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 02:48:19,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-10-11 02:48:19,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 465. [2024-10-11 02:48:19,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 356 states have (on average 1.603932584269663) internal successors, (571), 363 states have internal predecessors, (571), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (89), 76 states have call predecessors, (89), 77 states have call successors, (89) [2024-10-11 02:48:19,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 740 transitions. [2024-10-11 02:48:19,551 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 740 transitions. Word has length 119 [2024-10-11 02:48:19,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:19,551 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 740 transitions. [2024-10-11 02:48:19,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-11 02:48:19,552 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 740 transitions. [2024-10-11 02:48:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-11 02:48:19,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:19,554 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:19,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 02:48:19,555 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:19,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1025119802, now seen corresponding path program 1 times [2024-10-11 02:48:19,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:19,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697722321] [2024-10-11 02:48:19,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:19,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:48:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:48:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:48:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:48:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:48:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:48:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:48:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 02:48:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 02:48:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 02:48:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 02:48:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:19,788 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-11 02:48:19,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:19,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697722321] [2024-10-11 02:48:19,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697722321] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:48:19,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718473584] [2024-10-11 02:48:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:19,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:48:19,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:48:19,790 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:48:19,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 02:48:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:20,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:48:20,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:48:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 02:48:20,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:48:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 02:48:20,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718473584] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:48:20,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:48:20,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-11 02:48:20,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670572898] [2024-10-11 02:48:20,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:48:20,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 02:48:20,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:20,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 02:48:20,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:48:20,291 INFO L87 Difference]: Start difference. First operand 465 states and 740 transitions. Second operand has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-11 02:48:23,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:23,279 INFO L93 Difference]: Finished difference Result 1523 states and 2570 transitions. [2024-10-11 02:48:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 02:48:23,280 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 138 [2024-10-11 02:48:23,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:23,288 INFO L225 Difference]: With dead ends: 1523 [2024-10-11 02:48:23,289 INFO L226 Difference]: Without dead ends: 1084 [2024-10-11 02:48:23,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-11 02:48:23,291 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 2765 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 4983 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 5866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 4983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:23,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 1936 Invalid, 5866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 4983 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-11 02:48:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-10-11 02:48:23,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 890. [2024-10-11 02:48:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 702 states have (on average 1.650997150997151) internal successors, (1159), 709 states have internal predecessors, (1159), 159 states have call successors, (159), 25 states have call predecessors, (159), 28 states have return successors, (178), 155 states have call predecessors, (178), 156 states have call successors, (178) [2024-10-11 02:48:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1496 transitions. [2024-10-11 02:48:23,352 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1496 transitions. Word has length 138 [2024-10-11 02:48:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:23,352 INFO L471 AbstractCegarLoop]: Abstraction has 890 states and 1496 transitions. [2024-10-11 02:48:23,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 11 states have internal predecessors, (141), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-11 02:48:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1496 transitions. [2024-10-11 02:48:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-11 02:48:23,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:23,357 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:23,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 02:48:23,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 02:48:23,558 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:23,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:23,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1889822118, now seen corresponding path program 1 times [2024-10-11 02:48:23,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:23,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489290032] [2024-10-11 02:48:23,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:23,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:48:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:48:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:48:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:48:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:48:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:48:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:48:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:48:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:48:23,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:23,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489290032] [2024-10-11 02:48:23,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489290032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:23,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:23,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:23,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335890453] [2024-10-11 02:48:23,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:23,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:23,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:23,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:23,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:23,716 INFO L87 Difference]: Start difference. First operand 890 states and 1496 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:25,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:25,534 INFO L93 Difference]: Finished difference Result 2298 states and 3959 transitions. [2024-10-11 02:48:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:25,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-10-11 02:48:25,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:25,546 INFO L225 Difference]: With dead ends: 2298 [2024-10-11 02:48:25,546 INFO L226 Difference]: Without dead ends: 1476 [2024-10-11 02:48:25,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:25,552 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 1457 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:25,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 921 Invalid, 2303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 02:48:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-10-11 02:48:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1292. [2024-10-11 02:48:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1025 states have (on average 1.664390243902439) internal successors, (1706), 1032 states have internal predecessors, (1706), 238 states have call successors, (238), 25 states have call predecessors, (238), 28 states have return successors, (267), 234 states have call predecessors, (267), 235 states have call successors, (267) [2024-10-11 02:48:25,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 2211 transitions. [2024-10-11 02:48:25,653 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 2211 transitions. Word has length 124 [2024-10-11 02:48:25,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:25,654 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 2211 transitions. [2024-10-11 02:48:25,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:25,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 2211 transitions. [2024-10-11 02:48:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-11 02:48:25,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:25,662 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:25,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 02:48:25,662 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:25,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash -708475126, now seen corresponding path program 1 times [2024-10-11 02:48:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:25,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762386709] [2024-10-11 02:48:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:25,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:48:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:48:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:48:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:48:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:48:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:48:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:48:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:48:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:48:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 02:48:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 02:48:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 02:48:25,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:25,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762386709] [2024-10-11 02:48:25,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762386709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:25,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:25,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:25,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514709143] [2024-10-11 02:48:25,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:25,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:25,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:25,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:25,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:25,805 INFO L87 Difference]: Start difference. First operand 1292 states and 2211 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:27,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:27,413 INFO L93 Difference]: Finished difference Result 3301 states and 5736 transitions. [2024-10-11 02:48:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:27,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-10-11 02:48:27,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:27,428 INFO L225 Difference]: With dead ends: 3301 [2024-10-11 02:48:27,428 INFO L226 Difference]: Without dead ends: 2127 [2024-10-11 02:48:27,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:27,433 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1456 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:27,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 919 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 02:48:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2024-10-11 02:48:27,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1943. [2024-10-11 02:48:27,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1943 states, 1557 states have (on average 1.6711624919717405) internal successors, (2602), 1564 states have internal predecessors, (2602), 357 states have call successors, (357), 25 states have call predecessors, (357), 28 states have return successors, (386), 353 states have call predecessors, (386), 354 states have call successors, (386) [2024-10-11 02:48:27,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1943 states to 1943 states and 3345 transitions. [2024-10-11 02:48:27,545 INFO L78 Accepts]: Start accepts. Automaton has 1943 states and 3345 transitions. Word has length 143 [2024-10-11 02:48:27,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:27,545 INFO L471 AbstractCegarLoop]: Abstraction has 1943 states and 3345 transitions. [2024-10-11 02:48:27,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:27,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1943 states and 3345 transitions. [2024-10-11 02:48:27,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-11 02:48:27,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:27,555 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:27,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 02:48:27,556 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:27,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:27,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1632521560, now seen corresponding path program 1 times [2024-10-11 02:48:27,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:27,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029051813] [2024-10-11 02:48:27,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:27,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:48:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:48:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:48:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:48:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:48:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:48:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 02:48:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 02:48:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:48:27,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:27,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029051813] [2024-10-11 02:48:27,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029051813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:27,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:27,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135099823] [2024-10-11 02:48:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:27,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:27,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:27,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:27,678 INFO L87 Difference]: Start difference. First operand 1943 states and 3345 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:29,328 INFO L93 Difference]: Finished difference Result 4825 states and 8454 transitions. [2024-10-11 02:48:29,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:29,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2024-10-11 02:48:29,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:29,350 INFO L225 Difference]: With dead ends: 4825 [2024-10-11 02:48:29,350 INFO L226 Difference]: Without dead ends: 3128 [2024-10-11 02:48:29,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:29,358 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1455 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:29,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 907 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 02:48:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2024-10-11 02:48:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 2944. [2024-10-11 02:48:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2396 states have (on average 1.6769616026711185) internal successors, (4018), 2403 states have internal predecessors, (4018), 519 states have call successors, (519), 25 states have call predecessors, (519), 28 states have return successors, (564), 515 states have call predecessors, (564), 516 states have call successors, (564) [2024-10-11 02:48:29,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5101 transitions. [2024-10-11 02:48:29,594 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5101 transitions. Word has length 126 [2024-10-11 02:48:29,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:29,595 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 5101 transitions. [2024-10-11 02:48:29,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5101 transitions. [2024-10-11 02:48:29,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-11 02:48:29,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:29,610 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:29,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 02:48:29,611 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:29,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:29,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2046288569, now seen corresponding path program 1 times [2024-10-11 02:48:29,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:29,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352116270] [2024-10-11 02:48:29,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:29,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:48:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:48:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:48:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:48:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:48:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:48:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:48:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:48:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:48:29,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:29,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352116270] [2024-10-11 02:48:29,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352116270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:29,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:29,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:29,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306252524] [2024-10-11 02:48:29,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:29,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:29,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:29,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:29,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:29,759 INFO L87 Difference]: Start difference. First operand 2944 states and 5101 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:31,456 INFO L93 Difference]: Finished difference Result 7237 states and 12767 transitions. [2024-10-11 02:48:31,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:31,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-10-11 02:48:31,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:31,483 INFO L225 Difference]: With dead ends: 7237 [2024-10-11 02:48:31,484 INFO L226 Difference]: Without dead ends: 4748 [2024-10-11 02:48:31,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:31,492 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1451 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:31,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 906 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 02:48:31,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2024-10-11 02:48:31,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4564. [2024-10-11 02:48:31,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 3771 states have (on average 1.681251657385309) internal successors, (6340), 3778 states have internal predecessors, (6340), 764 states have call successors, (764), 25 states have call predecessors, (764), 28 states have return successors, (835), 760 states have call predecessors, (835), 761 states have call successors, (835) [2024-10-11 02:48:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7939 transitions. [2024-10-11 02:48:31,725 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7939 transitions. Word has length 127 [2024-10-11 02:48:31,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:31,726 INFO L471 AbstractCegarLoop]: Abstraction has 4564 states and 7939 transitions. [2024-10-11 02:48:31,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:31,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7939 transitions. [2024-10-11 02:48:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-11 02:48:31,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:31,742 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:31,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 02:48:31,742 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:31,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:31,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1209921954, now seen corresponding path program 1 times [2024-10-11 02:48:31,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:31,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13117583] [2024-10-11 02:48:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:31,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:48:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:48:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:48:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:48:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:48:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:48:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:48:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:48:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 02:48:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 02:48:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 02:48:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 02:48:31,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13117583] [2024-10-11 02:48:31,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13117583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:31,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:31,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:31,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530487606] [2024-10-11 02:48:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:31,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:31,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:31,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:31,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:31,872 INFO L87 Difference]: Start difference. First operand 4564 states and 7939 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:33,601 INFO L93 Difference]: Finished difference Result 11314 states and 20020 transitions. [2024-10-11 02:48:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:33,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2024-10-11 02:48:33,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:33,642 INFO L225 Difference]: With dead ends: 11314 [2024-10-11 02:48:33,643 INFO L226 Difference]: Without dead ends: 7508 [2024-10-11 02:48:33,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:33,656 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1452 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:33,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 935 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 02:48:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2024-10-11 02:48:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 7324. [2024-10-11 02:48:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7324 states, 6038 states have (on average 1.6753892017224246) internal successors, (10116), 6045 states have internal predecessors, (10116), 1257 states have call successors, (1257), 25 states have call predecessors, (1257), 28 states have return successors, (1372), 1253 states have call predecessors, (1372), 1254 states have call successors, (1372) [2024-10-11 02:48:34,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 12745 transitions. [2024-10-11 02:48:34,019 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 12745 transitions. Word has length 146 [2024-10-11 02:48:34,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:34,020 INFO L471 AbstractCegarLoop]: Abstraction has 7324 states and 12745 transitions. [2024-10-11 02:48:34,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:34,021 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 12745 transitions. [2024-10-11 02:48:34,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 02:48:34,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:34,044 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:34,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 02:48:34,044 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:34,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:34,045 INFO L85 PathProgramCache]: Analyzing trace with hash 568121859, now seen corresponding path program 1 times [2024-10-11 02:48:34,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:34,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758575589] [2024-10-11 02:48:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:34,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:48:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:48:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:48:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:48:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:48:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:48:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 02:48:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 02:48:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:48:34,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:34,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758575589] [2024-10-11 02:48:34,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758575589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:34,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:34,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:34,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461068383] [2024-10-11 02:48:34,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:34,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:34,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:34,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:34,211 INFO L87 Difference]: Start difference. First operand 7324 states and 12745 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:35,974 INFO L93 Difference]: Finished difference Result 18673 states and 33040 transitions. [2024-10-11 02:48:35,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:35,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2024-10-11 02:48:35,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:36,033 INFO L225 Difference]: With dead ends: 18673 [2024-10-11 02:48:36,034 INFO L226 Difference]: Without dead ends: 12493 [2024-10-11 02:48:36,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:36,059 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 1446 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:36,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 913 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 02:48:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12493 states. [2024-10-11 02:48:36,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12493 to 12309. [2024-10-11 02:48:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12309 states, 10201 states have (on average 1.6753259484364278) internal successors, (17090), 10208 states have internal predecessors, (17090), 2079 states have call successors, (2079), 25 states have call predecessors, (2079), 28 states have return successors, (2272), 2075 states have call predecessors, (2272), 2076 states have call successors, (2272) [2024-10-11 02:48:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12309 states to 12309 states and 21441 transitions. [2024-10-11 02:48:36,680 INFO L78 Accepts]: Start accepts. Automaton has 12309 states and 21441 transitions. Word has length 129 [2024-10-11 02:48:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:36,680 INFO L471 AbstractCegarLoop]: Abstraction has 12309 states and 21441 transitions. [2024-10-11 02:48:36,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 12309 states and 21441 transitions. [2024-10-11 02:48:36,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-11 02:48:36,713 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:36,713 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:36,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 02:48:36,713 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:36,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:36,714 INFO L85 PathProgramCache]: Analyzing trace with hash 389711342, now seen corresponding path program 1 times [2024-10-11 02:48:36,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:36,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899921909] [2024-10-11 02:48:36,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:36,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:48:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:48:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:48:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:48:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:48:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:48:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:48:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:48:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:48:36,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899921909] [2024-10-11 02:48:36,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899921909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:36,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:36,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:36,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740596797] [2024-10-11 02:48:36,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:36,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:36,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:36,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:36,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:36,841 INFO L87 Difference]: Start difference. First operand 12309 states and 21441 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:38,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:38,784 INFO L93 Difference]: Finished difference Result 29639 states and 52223 transitions. [2024-10-11 02:48:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-10-11 02:48:38,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:38,887 INFO L225 Difference]: With dead ends: 29639 [2024-10-11 02:48:38,887 INFO L226 Difference]: Without dead ends: 19453 [2024-10-11 02:48:38,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:38,929 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1448 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:38,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 881 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 02:48:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19453 states. [2024-10-11 02:48:39,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19453 to 19269. [2024-10-11 02:48:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19269 states, 15958 states have (on average 1.6532773530517608) internal successors, (26383), 15965 states have internal predecessors, (26383), 3282 states have call successors, (3282), 25 states have call predecessors, (3282), 28 states have return successors, (3619), 3278 states have call predecessors, (3619), 3279 states have call successors, (3619) [2024-10-11 02:48:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19269 states to 19269 states and 33284 transitions. [2024-10-11 02:48:39,869 INFO L78 Accepts]: Start accepts. Automaton has 19269 states and 33284 transitions. Word has length 130 [2024-10-11 02:48:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:39,869 INFO L471 AbstractCegarLoop]: Abstraction has 19269 states and 33284 transitions. [2024-10-11 02:48:39,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:39,870 INFO L276 IsEmpty]: Start isEmpty. Operand 19269 states and 33284 transitions. [2024-10-11 02:48:39,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-11 02:48:39,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:39,900 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:39,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 02:48:39,900 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:39,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:39,900 INFO L85 PathProgramCache]: Analyzing trace with hash 254848548, now seen corresponding path program 1 times [2024-10-11 02:48:39,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:39,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588477976] [2024-10-11 02:48:39,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:39,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:39,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:39,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:39,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:39,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:39,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:39,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:39,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:48:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:48:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:48:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:48:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:48:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:48:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:48:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:48:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 02:48:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 02:48:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 02:48:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 02:48:40,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:40,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588477976] [2024-10-11 02:48:40,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588477976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:40,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:40,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:40,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097430960] [2024-10-11 02:48:40,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:40,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:40,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:40,022 INFO L87 Difference]: Start difference. First operand 19269 states and 33284 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:42,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:42,243 INFO L93 Difference]: Finished difference Result 51080 states and 89756 transitions. [2024-10-11 02:48:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:42,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2024-10-11 02:48:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:42,406 INFO L225 Difference]: With dead ends: 51080 [2024-10-11 02:48:42,406 INFO L226 Difference]: Without dead ends: 34582 [2024-10-11 02:48:42,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:42,464 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1446 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:42,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 907 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 02:48:42,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34582 states. [2024-10-11 02:48:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34582 to 34398. [2024-10-11 02:48:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34398 states, 28637 states have (on average 1.6505918916087579) internal successors, (47268), 28644 states have internal predecessors, (47268), 5732 states have call successors, (5732), 25 states have call predecessors, (5732), 28 states have return successors, (6343), 5728 states have call predecessors, (6343), 5729 states have call successors, (6343) [2024-10-11 02:48:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34398 states to 34398 states and 59343 transitions. [2024-10-11 02:48:44,285 INFO L78 Accepts]: Start accepts. Automaton has 34398 states and 59343 transitions. Word has length 149 [2024-10-11 02:48:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:44,290 INFO L471 AbstractCegarLoop]: Abstraction has 34398 states and 59343 transitions. [2024-10-11 02:48:44,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:44,290 INFO L276 IsEmpty]: Start isEmpty. Operand 34398 states and 59343 transitions. [2024-10-11 02:48:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 02:48:44,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:44,323 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:44,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 02:48:44,324 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:44,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash -132332970, now seen corresponding path program 1 times [2024-10-11 02:48:44,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140620326] [2024-10-11 02:48:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:44,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:48:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:48:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:48:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:48:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:48:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:48:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 02:48:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 02:48:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 02:48:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 02:48:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-11 02:48:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:44,432 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 02:48:44,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:44,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140620326] [2024-10-11 02:48:44,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140620326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:44,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:44,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:44,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095269647] [2024-10-11 02:48:44,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:44,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:44,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:44,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:44,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:44,435 INFO L87 Difference]: Start difference. First operand 34398 states and 59343 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:47,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:47,792 INFO L93 Difference]: Finished difference Result 93962 states and 164350 transitions. [2024-10-11 02:48:47,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:47,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-10-11 02:48:47,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:48,086 INFO L225 Difference]: With dead ends: 93962 [2024-10-11 02:48:48,086 INFO L226 Difference]: Without dead ends: 63258 [2024-10-11 02:48:48,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:48,192 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1443 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:48,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 913 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 02:48:48,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63258 states. [2024-10-11 02:48:50,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63258 to 63074. [2024-10-11 02:48:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63074 states, 52800 states have (on average 1.646969696969697) internal successors, (86960), 52807 states have internal predecessors, (86960), 10245 states have call successors, (10245), 25 states have call predecessors, (10245), 28 states have return successors, (11388), 10241 states have call predecessors, (11388), 10242 states have call successors, (11388) [2024-10-11 02:48:50,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63074 states to 63074 states and 108593 transitions. [2024-10-11 02:48:50,840 INFO L78 Accepts]: Start accepts. Automaton has 63074 states and 108593 transitions. Word has length 150 [2024-10-11 02:48:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:48:50,840 INFO L471 AbstractCegarLoop]: Abstraction has 63074 states and 108593 transitions. [2024-10-11 02:48:50,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-11 02:48:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 63074 states and 108593 transitions. [2024-10-11 02:48:50,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-11 02:48:50,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:48:50,883 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:48:50,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 02:48:50,883 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:48:50,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:48:50,884 INFO L85 PathProgramCache]: Analyzing trace with hash -9357886, now seen corresponding path program 1 times [2024-10-11 02:48:50,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:48:50,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342481523] [2024-10-11 02:48:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:48:50,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:48:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:48:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:48:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:48:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:48:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:48:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:48:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:48:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:48:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:48:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:48:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:48:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 02:48:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:48:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 02:48:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:48:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:48:50,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:48:50,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342481523] [2024-10-11 02:48:50,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342481523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:48:50,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:48:50,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:48:50,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858346619] [2024-10-11 02:48:50,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:48:50,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:48:50,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:48:50,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:48:50,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:48:50,982 INFO L87 Difference]: Start difference. First operand 63074 states and 108593 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:48:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:48:55,251 INFO L93 Difference]: Finished difference Result 118342 states and 207502 transitions. [2024-10-11 02:48:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:48:55,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-10-11 02:48:55,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:48:55,890 INFO L225 Difference]: With dead ends: 118342 [2024-10-11 02:48:55,890 INFO L226 Difference]: Without dead ends: 118144 [2024-10-11 02:48:55,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:48:55,948 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 1439 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:48:55,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 920 Invalid, 2303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 02:48:56,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118144 states. [2024-10-11 02:49:00,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118144 to 117960. [2024-10-11 02:49:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117960 states, 99318 states have (on average 1.6423004893372803) internal successors, (163110), 99325 states have internal predecessors, (163110), 18613 states have call successors, (18613), 25 states have call predecessors, (18613), 28 states have return successors, (20802), 18609 states have call predecessors, (20802), 18610 states have call successors, (20802) [2024-10-11 02:49:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117960 states to 117960 states and 202525 transitions. [2024-10-11 02:49:00,757 INFO L78 Accepts]: Start accepts. Automaton has 117960 states and 202525 transitions. Word has length 133 [2024-10-11 02:49:00,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:49:00,757 INFO L471 AbstractCegarLoop]: Abstraction has 117960 states and 202525 transitions. [2024-10-11 02:49:00,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 02:49:00,758 INFO L276 IsEmpty]: Start isEmpty. Operand 117960 states and 202525 transitions. [2024-10-11 02:49:00,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-11 02:49:00,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:49:00,813 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:49:00,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 02:49:00,814 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:49:00,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:49:00,814 INFO L85 PathProgramCache]: Analyzing trace with hash -675184075, now seen corresponding path program 1 times [2024-10-11 02:49:00,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:49:00,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468885711] [2024-10-11 02:49:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:49:00,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:49:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:00,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:49:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:49:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:49:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:49:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:49:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:49:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:49:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:49:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:49:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:49:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:49:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:49:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 02:49:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 02:49:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:49:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:49:01,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:49:01,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468885711] [2024-10-11 02:49:01,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468885711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:49:01,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:49:01,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 02:49:01,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972939316] [2024-10-11 02:49:01,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:49:01,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 02:49:01,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:49:01,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 02:49:01,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:49:01,073 INFO L87 Difference]: Start difference. First operand 117960 states and 202525 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-11 02:49:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:49:08,275 INFO L93 Difference]: Finished difference Result 119103 states and 207719 transitions. [2024-10-11 02:49:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 02:49:08,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2024-10-11 02:49:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:49:08,809 INFO L225 Difference]: With dead ends: 119103 [2024-10-11 02:49:08,809 INFO L226 Difference]: Without dead ends: 118912 [2024-10-11 02:49:08,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=342, Invalid=918, Unknown=0, NotChecked=0, Total=1260 [2024-10-11 02:49:08,863 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 2747 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 5506 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2764 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 6477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 5506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:49:08,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2764 Valid, 1224 Invalid, 6477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 5506 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-11 02:49:08,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118912 states.