./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_product32.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f844ee25e08c400ffe9294b51b3c9849047d932ed3d2e45badb4ba2d0884ce06 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:10:55,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:10:55,441 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:10:55,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:10:55,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:10:55,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:10:55,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:10:55,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:10:55,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:10:55,473 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:10:55,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:10:55,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:10:55,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:10:55,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:10:55,476 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:10:55,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:10:55,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:10:55,476 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:10:55,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:10:55,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:10:55,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:10:55,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:10:55,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:10:55,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:10:55,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:10:55,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:10:55,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:10:55,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:10:55,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:10:55,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:10:55,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:10:55,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:10:55,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:10:55,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:10:55,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:10:55,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:10:55,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:10:55,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:10:55,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:10:55,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:10:55,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:10:55,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:10:55,482 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f844ee25e08c400ffe9294b51b3c9849047d932ed3d2e45badb4ba2d0884ce06 [2024-11-18 14:10:55,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:10:55,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:10:55,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:10:55,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:10:55,707 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:10:55,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product32.cil.c [2024-11-18 14:10:56,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:10:57,179 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:10:57,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product32.cil.c [2024-11-18 14:10:57,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636fa1eca/10c5d752fc024a9c96421856b572c162/FLAGa1d1933cc [2024-11-18 14:10:57,219 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636fa1eca/10c5d752fc024a9c96421856b572c162 [2024-11-18 14:10:57,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:10:57,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:10:57,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:10:57,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:10:57,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:10:57,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e96250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57, skipping insertion in model container [2024-11-18 14:10:57,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:10:57,513 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product32.cil.c[1542,1555] [2024-11-18 14:10:57,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:10:57,741 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:10:57,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-11-18 14:10:57,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [57] [2024-11-18 14:10:57,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [106] [2024-11-18 14:10:57,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [541] [2024-11-18 14:10:57,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [558] [2024-11-18 14:10:57,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [787] [2024-11-18 14:10:57,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [845] [2024-11-18 14:10:57,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1917] [2024-11-18 14:10:57,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2205] [2024-11-18 14:10:57,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] [2024-11-18 14:10:57,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] [2024-11-18 14:10:57,754 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product32.cil.c[1542,1555] [2024-11-18 14:10:57,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:10:57,859 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:10:57,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57 WrapperNode [2024-11-18 14:10:57,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:10:57,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:10:57,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:10:57,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:10:57,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,927 INFO L138 Inliner]: procedures = 135, calls = 226, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 1017 [2024-11-18 14:10:57,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:10:57,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:10:57,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:10:57,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:10:57,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,965 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]. [2024-11-18 14:10:57,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:57,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:58,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:58,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:58,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:10:58,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:10:58,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:10:58,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:10:58,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (1/1) ... [2024-11-18 14:10:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:10:58,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:58,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:10:58,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:10:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-18 14:10:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-18 14:10:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-18 14:10:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-18 14:10:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-18 14:10:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-18 14:10:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-18 14:10:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-18 14:10:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-18 14:10:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-18 14:10:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-18 14:10:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-18 14:10:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-18 14:10:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-18 14:10:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-18 14:10:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-18 14:10:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-18 14:10:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-18 14:10:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-18 14:10:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-18 14:10:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-18 14:10:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-18 14:10:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-18 14:10:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-18 14:10:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-18 14:10:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-18 14:10:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-18 14:10:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-18 14:10:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-18 14:10:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-18 14:10:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:10:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-18 14:10:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-18 14:10:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-18 14:10:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-18 14:10:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-18 14:10:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-18 14:10:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-18 14:10:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-18 14:10:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:10:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:10:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-18 14:10:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-18 14:10:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-18 14:10:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-18 14:10:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-18 14:10:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-18 14:10:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-18 14:10:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-18 14:10:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-18 14:10:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-18 14:10:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-18 14:10:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-18 14:10:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-18 14:10:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-18 14:10:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:10:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:10:58,282 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:10:58,284 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:10:59,064 INFO L? ?]: Removed 543 outVars from TransFormulas that were not future-live. [2024-11-18 14:10:59,065 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:10:59,087 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:10:59,088 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:10:59,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:10:59 BoogieIcfgContainer [2024-11-18 14:10:59,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:10:59,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:10:59,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:10:59,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:10:59,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:10:57" (1/3) ... [2024-11-18 14:10:59,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aeae75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:10:59, skipping insertion in model container [2024-11-18 14:10:59,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:57" (2/3) ... [2024-11-18 14:10:59,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aeae75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:10:59, skipping insertion in model container [2024-11-18 14:10:59,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:10:59" (3/3) ... [2024-11-18 14:10:59,094 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product32.cil.c [2024-11-18 14:10:59,107 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:10:59,107 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:10:59,168 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:10:59,172 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;@46548612, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:10:59,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:10:59,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 436 states, 335 states have (on average 1.5462686567164179) internal successors, (518), 342 states have internal predecessors, (518), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-18 14:10:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-18 14:10:59,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:59,198 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:59,199 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:59,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2090905474, now seen corresponding path program 1 times [2024-11-18 14:10:59,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:59,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738788783] [2024-11-18 14:10:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:59,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-18 14:10:59,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738788783] [2024-11-18 14:10:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738788783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:10:59,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952697876] [2024-11-18 14:10:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:59,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:59,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:59,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:10:59,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:11:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:00,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:11:00,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-18 14:11:00,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:00,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952697876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:00,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:00,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-18 14:11:00,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334261107] [2024-11-18 14:11:00,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:00,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:11:00,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:00,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:11:00,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:00,196 INFO L87 Difference]: Start difference. First operand has 436 states, 335 states have (on average 1.5462686567164179) internal successors, (518), 342 states have internal predecessors, (518), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:00,251 INFO L93 Difference]: Finished difference Result 678 states and 1006 transitions. [2024-11-18 14:11:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:11:00,257 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2024-11-18 14:11:00,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:00,272 INFO L225 Difference]: With dead ends: 678 [2024-11-18 14:11:00,272 INFO L226 Difference]: Without dead ends: 428 [2024-11-18 14:11:00,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:00,283 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:00,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:00,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-18 14:11:00,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2024-11-18 14:11:00,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 329 states have (on average 1.541033434650456) internal successors, (507), 334 states have internal predecessors, (507), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-18 14:11:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 644 transitions. [2024-11-18 14:11:00,356 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 644 transitions. Word has length 158 [2024-11-18 14:11:00,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:00,358 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 644 transitions. [2024-11-18 14:11:00,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 644 transitions. [2024-11-18 14:11:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-18 14:11:00,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:00,366 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:00,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:11:00,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 14:11:00,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:00,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:00,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1214452620, now seen corresponding path program 1 times [2024-11-18 14:11:00,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:00,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246563627] [2024-11-18 14:11:00,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:00,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-18 14:11:00,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:00,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246563627] [2024-11-18 14:11:00,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246563627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:00,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097915463] [2024-11-18 14:11:00,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:00,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:00,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:00,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:00,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:11:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:01,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:11:01,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-18 14:11:01,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:01,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097915463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:01,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:11:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733725562] [2024-11-18 14:11:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:01,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:01,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:01,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:01,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:11:01,156 INFO L87 Difference]: Start difference. First operand 428 states and 644 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:01,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:01,219 INFO L93 Difference]: Finished difference Result 667 states and 980 transitions. [2024-11-18 14:11:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:01,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2024-11-18 14:11:01,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:01,227 INFO L225 Difference]: With dead ends: 667 [2024-11-18 14:11:01,227 INFO L226 Difference]: Without dead ends: 431 [2024-11-18 14:11:01,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:11:01,230 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 1 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:01,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1282 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-18 14:11:01,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 430. [2024-11-18 14:11:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 331 states have (on average 1.5377643504531722) internal successors, (509), 336 states have internal predecessors, (509), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-18 14:11:01,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 646 transitions. [2024-11-18 14:11:01,268 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 646 transitions. Word has length 159 [2024-11-18 14:11:01,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:01,268 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 646 transitions. [2024-11-18 14:11:01,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:01,269 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 646 transitions. [2024-11-18 14:11:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 14:11:01,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:01,271 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:01,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:11:01,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-18 14:11:01,474 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:01,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash 363354477, now seen corresponding path program 1 times [2024-11-18 14:11:01,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:01,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713608303] [2024-11-18 14:11:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:01,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-18 14:11:01,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:01,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713608303] [2024-11-18 14:11:01,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713608303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:01,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297283260] [2024-11-18 14:11:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:01,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:01,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:01,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:01,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:11:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:01,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:11:01,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:01,982 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-18 14:11:01,983 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:01,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297283260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:01,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:01,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:11:01,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671714217] [2024-11-18 14:11:01,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:01,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:01,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:01,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:01,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:11:01,985 INFO L87 Difference]: Start difference. First operand 430 states and 646 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:02,017 INFO L93 Difference]: Finished difference Result 908 states and 1384 transitions. [2024-11-18 14:11:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:02,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-11-18 14:11:02,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:02,021 INFO L225 Difference]: With dead ends: 908 [2024-11-18 14:11:02,022 INFO L226 Difference]: Without dead ends: 505 [2024-11-18 14:11:02,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:11:02,025 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 134 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:02,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1257 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:02,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-18 14:11:02,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 497. [2024-11-18 14:11:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 384 states have (on average 1.5572916666666667) internal successors, (598), 389 states have internal predecessors, (598), 84 states have call successors, (84), 29 states have call predecessors, (84), 28 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:11:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 763 transitions. [2024-11-18 14:11:02,044 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 763 transitions. Word has length 168 [2024-11-18 14:11:02,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:02,044 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 763 transitions. [2024-11-18 14:11:02,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:02,044 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 763 transitions. [2024-11-18 14:11:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-18 14:11:02,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:02,047 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:02,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 14:11:02,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:02,251 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:02,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash -490279062, now seen corresponding path program 1 times [2024-11-18 14:11:02,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:02,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534939692] [2024-11-18 14:11:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:02,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:11:02,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534939692] [2024-11-18 14:11:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534939692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:02,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953212594] [2024-11-18 14:11:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:02,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:02,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:02,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:02,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:11:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:02,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:11:02,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:11:02,705 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:02,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953212594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:02,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:02,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-18 14:11:02,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176601390] [2024-11-18 14:11:02,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:02,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:11:02,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:02,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:11:02,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:11:02,708 INFO L87 Difference]: Start difference. First operand 497 states and 763 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 14:11:02,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:02,763 INFO L93 Difference]: Finished difference Result 985 states and 1516 transitions. [2024-11-18 14:11:02,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:11:02,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-11-18 14:11:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:02,767 INFO L225 Difference]: With dead ends: 985 [2024-11-18 14:11:02,768 INFO L226 Difference]: Without dead ends: 499 [2024-11-18 14:11:02,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:11:02,770 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 2 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:02,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2533 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:02,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-18 14:11:02,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2024-11-18 14:11:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 385 states have (on average 1.5558441558441558) internal successors, (599), 391 states have internal predecessors, (599), 84 states have call successors, (84), 29 states have call predecessors, (84), 29 states have return successors, (83), 80 states have call predecessors, (83), 81 states have call successors, (83) [2024-11-18 14:11:02,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 766 transitions. [2024-11-18 14:11:02,796 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 766 transitions. Word has length 150 [2024-11-18 14:11:02,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:02,797 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 766 transitions. [2024-11-18 14:11:02,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 14:11:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 766 transitions. [2024-11-18 14:11:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-18 14:11:02,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:02,799 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:02,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-18 14:11:03,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:03,000 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:03,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:03,001 INFO L85 PathProgramCache]: Analyzing trace with hash 117069503, now seen corresponding path program 1 times [2024-11-18 14:11:03,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:03,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603353323] [2024-11-18 14:11:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:03,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:03,150 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 14:11:03,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:03,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603353323] [2024-11-18 14:11:03,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603353323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:03,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723195702] [2024-11-18 14:11:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:03,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:03,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:03,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:03,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:11:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:03,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 14:11:03,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:11:03,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:03,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723195702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:03,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:03,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-18 14:11:03,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369887980] [2024-11-18 14:11:03,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:03,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:11:03,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:03,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:11:03,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:11:03,459 INFO L87 Difference]: Start difference. First operand 499 states and 766 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 14:11:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:03,508 INFO L93 Difference]: Finished difference Result 987 states and 1521 transitions. [2024-11-18 14:11:03,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:11:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-18 14:11:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:03,512 INFO L225 Difference]: With dead ends: 987 [2024-11-18 14:11:03,512 INFO L226 Difference]: Without dead ends: 501 [2024-11-18 14:11:03,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:11:03,514 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 2 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:03,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2519 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-18 14:11:03,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2024-11-18 14:11:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 386 states have (on average 1.5544041450777202) internal successors, (600), 393 states have internal predecessors, (600), 84 states have call successors, (84), 29 states have call predecessors, (84), 30 states have return successors, (88), 80 states have call predecessors, (88), 81 states have call successors, (88) [2024-11-18 14:11:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 772 transitions. [2024-11-18 14:11:03,528 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 772 transitions. Word has length 151 [2024-11-18 14:11:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:03,528 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 772 transitions. [2024-11-18 14:11:03,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 14:11:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 772 transitions. [2024-11-18 14:11:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:11:03,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:03,531 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:03,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 14:11:03,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:03,732 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:03,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1587537440, now seen corresponding path program 1 times [2024-11-18 14:11:03,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:03,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141819845] [2024-11-18 14:11:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:11:03,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:03,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141819845] [2024-11-18 14:11:03,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141819845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:03,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:03,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:11:03,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460162492] [2024-11-18 14:11:03,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:03,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:11:03,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:03,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:11:03,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:03,849 INFO L87 Difference]: Start difference. First operand 501 states and 772 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 14:11:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:03,882 INFO L93 Difference]: Finished difference Result 979 states and 1512 transitions. [2024-11-18 14:11:03,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:11:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2024-11-18 14:11:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:03,885 INFO L225 Difference]: With dead ends: 979 [2024-11-18 14:11:03,885 INFO L226 Difference]: Without dead ends: 501 [2024-11-18 14:11:03,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:03,887 INFO L432 NwaCegarLoop]: 637 mSDtfsCounter, 2 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:03,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2537 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-18 14:11:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2024-11-18 14:11:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 386 states have (on average 1.5544041450777202) internal successors, (600), 393 states have internal predecessors, (600), 84 states have call successors, (84), 29 states have call predecessors, (84), 30 states have return successors, (87), 80 states have call predecessors, (87), 81 states have call successors, (87) [2024-11-18 14:11:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 771 transitions. [2024-11-18 14:11:03,917 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 771 transitions. Word has length 152 [2024-11-18 14:11:03,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:03,918 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 771 transitions. [2024-11-18 14:11:03,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 14:11:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 771 transitions. [2024-11-18 14:11:03,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-18 14:11:03,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:03,921 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:03,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:11:03,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:03,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:03,922 INFO L85 PathProgramCache]: Analyzing trace with hash 122554866, now seen corresponding path program 1 times [2024-11-18 14:11:03,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:03,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457006042] [2024-11-18 14:11:03,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:03,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-18 14:11:04,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457006042] [2024-11-18 14:11:04,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457006042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:04,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:04,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:11:04,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207487809] [2024-11-18 14:11:04,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:04,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:11:04,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:11:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:04,095 INFO L87 Difference]: Start difference. First operand 501 states and 771 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-18 14:11:04,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:04,127 INFO L93 Difference]: Finished difference Result 981 states and 1515 transitions. [2024-11-18 14:11:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:11:04,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 172 [2024-11-18 14:11:04,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:04,130 INFO L225 Difference]: With dead ends: 981 [2024-11-18 14:11:04,130 INFO L226 Difference]: Without dead ends: 503 [2024-11-18 14:11:04,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:04,133 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 1 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:04,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2540 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-18 14:11:04,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2024-11-18 14:11:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 387 states have (on average 1.5529715762273901) internal successors, (601), 395 states have internal predecessors, (601), 84 states have call successors, (84), 29 states have call predecessors, (84), 31 states have return successors, (89), 80 states have call predecessors, (89), 81 states have call successors, (89) [2024-11-18 14:11:04,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 774 transitions. [2024-11-18 14:11:04,148 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 774 transitions. Word has length 172 [2024-11-18 14:11:04,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:04,149 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 774 transitions. [2024-11-18 14:11:04,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-18 14:11:04,149 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 774 transitions. [2024-11-18 14:11:04,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-18 14:11:04,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:04,151 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:04,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:11:04,151 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:04,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:04,152 INFO L85 PathProgramCache]: Analyzing trace with hash 544497006, now seen corresponding path program 1 times [2024-11-18 14:11:04,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:04,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437553910] [2024-11-18 14:11:04,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:04,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-18 14:11:04,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:04,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437553910] [2024-11-18 14:11:04,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437553910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:04,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:04,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:11:04,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955237974] [2024-11-18 14:11:04,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:04,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:11:04,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:04,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:11:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:11:04,298 INFO L87 Difference]: Start difference. First operand 503 states and 774 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-18 14:11:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:04,423 INFO L93 Difference]: Finished difference Result 983 states and 1514 transitions. [2024-11-18 14:11:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:11:04,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 173 [2024-11-18 14:11:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:04,426 INFO L225 Difference]: With dead ends: 983 [2024-11-18 14:11:04,426 INFO L226 Difference]: Without dead ends: 505 [2024-11-18 14:11:04,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:11:04,428 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 7 mSDsluCounter, 3739 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:04,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4367 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:11:04,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-18 14:11:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-11-18 14:11:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 389 states have (on average 1.5501285347043703) internal successors, (603), 396 states have internal predecessors, (603), 84 states have call successors, (84), 30 states have call predecessors, (84), 31 states have return successors, (88), 80 states have call predecessors, (88), 81 states have call successors, (88) [2024-11-18 14:11:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 775 transitions. [2024-11-18 14:11:04,442 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 775 transitions. Word has length 173 [2024-11-18 14:11:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:04,443 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 775 transitions. [2024-11-18 14:11:04,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-18 14:11:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 775 transitions. [2024-11-18 14:11:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-18 14:11:04,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:04,445 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:04,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:11:04,445 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:04,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1333311405, now seen corresponding path program 2 times [2024-11-18 14:11:04,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:04,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932376995] [2024-11-18 14:11:04,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:11:04,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:04,478 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:11:04,478 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:11:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-18 14:11:04,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:04,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932376995] [2024-11-18 14:11:04,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932376995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:04,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:04,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:11:04,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950864583] [2024-11-18 14:11:04,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:04,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:11:04,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:11:04,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:11:04,593 INFO L87 Difference]: Start difference. First operand 505 states and 775 transitions. Second operand has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-18 14:11:04,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:04,652 INFO L93 Difference]: Finished difference Result 983 states and 1518 transitions. [2024-11-18 14:11:04,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:11:04,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 174 [2024-11-18 14:11:04,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:04,655 INFO L225 Difference]: With dead ends: 983 [2024-11-18 14:11:04,655 INFO L226 Difference]: Without dead ends: 507 [2024-11-18 14:11:04,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:11:04,658 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 2 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:04,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3157 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:04,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-18 14:11:04,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2024-11-18 14:11:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 390 states have (on average 1.5487179487179488) internal successors, (604), 398 states have internal predecessors, (604), 84 states have call successors, (84), 30 states have call predecessors, (84), 32 states have return successors, (93), 80 states have call predecessors, (93), 81 states have call successors, (93) [2024-11-18 14:11:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 781 transitions. [2024-11-18 14:11:04,672 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 781 transitions. Word has length 174 [2024-11-18 14:11:04,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:04,673 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 781 transitions. [2024-11-18 14:11:04,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-18 14:11:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 781 transitions. [2024-11-18 14:11:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 14:11:04,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:04,676 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:04,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:11:04,676 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:04,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:04,677 INFO L85 PathProgramCache]: Analyzing trace with hash -778011437, now seen corresponding path program 1 times [2024-11-18 14:11:04,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:04,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755707277] [2024-11-18 14:11:04,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:04,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-18 14:11:04,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:04,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755707277] [2024-11-18 14:11:04,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755707277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:04,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882921078] [2024-11-18 14:11:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:04,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:04,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:04,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:04,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:11:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:05,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:11:05,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:05,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:11:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:05,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882921078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:11:05,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:11:05,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-18 14:11:05,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074594218] [2024-11-18 14:11:05,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:11:05,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 14:11:05,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:05,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 14:11:05,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:11:05,255 INFO L87 Difference]: Start difference. First operand 507 states and 781 transitions. Second operand has 11 states, 10 states have (on average 16.4) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-18 14:11:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:05,807 INFO L93 Difference]: Finished difference Result 1427 states and 2295 transitions. [2024-11-18 14:11:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:11:05,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.4) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 175 [2024-11-18 14:11:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:05,813 INFO L225 Difference]: With dead ends: 1427 [2024-11-18 14:11:05,813 INFO L226 Difference]: Without dead ends: 951 [2024-11-18 14:11:05,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:11:05,815 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 1510 mSDsluCounter, 4301 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:05,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 4926 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:11:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-18 14:11:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 925. [2024-11-18 14:11:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 729 states have (on average 1.6049382716049383) internal successors, (1170), 737 states have internal predecessors, (1170), 163 states have call successors, (163), 30 states have call predecessors, (163), 32 states have return successors, (182), 159 states have call predecessors, (182), 160 states have call successors, (182) [2024-11-18 14:11:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1515 transitions. [2024-11-18 14:11:05,842 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1515 transitions. Word has length 175 [2024-11-18 14:11:05,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:05,843 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1515 transitions. [2024-11-18 14:11:05,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.4) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-18 14:11:05,843 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1515 transitions. [2024-11-18 14:11:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-18 14:11:05,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:05,847 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:05,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 14:11:06,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:06,048 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:06,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:06,049 INFO L85 PathProgramCache]: Analyzing trace with hash -349752768, now seen corresponding path program 1 times [2024-11-18 14:11:06,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:06,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648294096] [2024-11-18 14:11:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:06,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:06,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:06,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648294096] [2024-11-18 14:11:06,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648294096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:06,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:06,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:06,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880620780] [2024-11-18 14:11:06,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:06,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:06,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:06,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:06,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,112 INFO L87 Difference]: Start difference. First operand 925 states and 1515 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:06,145 INFO L93 Difference]: Finished difference Result 2168 states and 3611 transitions. [2024-11-18 14:11:06,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:06,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 178 [2024-11-18 14:11:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:06,169 INFO L225 Difference]: With dead ends: 2168 [2024-11-18 14:11:06,169 INFO L226 Difference]: Without dead ends: 1323 [2024-11-18 14:11:06,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,172 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 131 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:06,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1293 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:06,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2024-11-18 14:11:06,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1315. [2024-11-18 14:11:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1040 states have (on average 1.625) internal successors, (1690), 1048 states have internal predecessors, (1690), 242 states have call successors, (242), 30 states have call predecessors, (242), 32 states have return successors, (271), 238 states have call predecessors, (271), 239 states have call successors, (271) [2024-11-18 14:11:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 2203 transitions. [2024-11-18 14:11:06,212 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 2203 transitions. Word has length 178 [2024-11-18 14:11:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:06,212 INFO L471 AbstractCegarLoop]: Abstraction has 1315 states and 2203 transitions. [2024-11-18 14:11:06,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 2203 transitions. [2024-11-18 14:11:06,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 14:11:06,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:06,218 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:06,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:11:06,219 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:06,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:06,219 INFO L85 PathProgramCache]: Analyzing trace with hash 735452247, now seen corresponding path program 1 times [2024-11-18 14:11:06,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:06,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608226423] [2024-11-18 14:11:06,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:06,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:06,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:06,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608226423] [2024-11-18 14:11:06,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608226423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:06,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:06,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:06,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910326098] [2024-11-18 14:11:06,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:06,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:06,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:06,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:06,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,282 INFO L87 Difference]: Start difference. First operand 1315 states and 2203 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:06,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:06,326 INFO L93 Difference]: Finished difference Result 3142 states and 5304 transitions. [2024-11-18 14:11:06,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:06,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2024-11-18 14:11:06,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:06,336 INFO L225 Difference]: With dead ends: 3142 [2024-11-18 14:11:06,336 INFO L226 Difference]: Without dead ends: 1960 [2024-11-18 14:11:06,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,340 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 129 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:06,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1280 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:06,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2024-11-18 14:11:06,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1952. [2024-11-18 14:11:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1952 states, 1558 states have (on average 1.6354300385109115) internal successors, (2548), 1566 states have internal predecessors, (2548), 361 states have call successors, (361), 30 states have call predecessors, (361), 32 states have return successors, (390), 357 states have call predecessors, (390), 358 states have call successors, (390) [2024-11-18 14:11:06,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 3299 transitions. [2024-11-18 14:11:06,406 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 3299 transitions. Word has length 179 [2024-11-18 14:11:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:06,406 INFO L471 AbstractCegarLoop]: Abstraction has 1952 states and 3299 transitions. [2024-11-18 14:11:06,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 3299 transitions. [2024-11-18 14:11:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-18 14:11:06,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:06,414 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:06,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:11:06,415 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:06,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash 736533650, now seen corresponding path program 1 times [2024-11-18 14:11:06,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:06,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924931203] [2024-11-18 14:11:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:06,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:06,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924931203] [2024-11-18 14:11:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924931203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:06,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764904560] [2024-11-18 14:11:06,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:06,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:06,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,467 INFO L87 Difference]: Start difference. First operand 1952 states and 3299 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:06,583 INFO L93 Difference]: Finished difference Result 4622 states and 7881 transitions. [2024-11-18 14:11:06,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:06,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 180 [2024-11-18 14:11:06,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:06,598 INFO L225 Difference]: With dead ends: 4622 [2024-11-18 14:11:06,599 INFO L226 Difference]: Without dead ends: 2938 [2024-11-18 14:11:06,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,606 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 127 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:06,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1275 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:06,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2024-11-18 14:11:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2930. [2024-11-18 14:11:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2930 states, 2374 states have (on average 1.6436394271272114) internal successors, (3902), 2382 states have internal predecessors, (3902), 523 states have call successors, (523), 30 states have call predecessors, (523), 32 states have return successors, (568), 519 states have call predecessors, (568), 520 states have call successors, (568) [2024-11-18 14:11:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4993 transitions. [2024-11-18 14:11:06,723 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4993 transitions. Word has length 180 [2024-11-18 14:11:06,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:06,723 INFO L471 AbstractCegarLoop]: Abstraction has 2930 states and 4993 transitions. [2024-11-18 14:11:06,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4993 transitions. [2024-11-18 14:11:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-18 14:11:06,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:06,735 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:06,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:11:06,736 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:06,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:06,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1333378230, now seen corresponding path program 1 times [2024-11-18 14:11:06,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:06,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376273899] [2024-11-18 14:11:06,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:06,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:06,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376273899] [2024-11-18 14:11:06,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376273899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:06,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:06,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:06,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434186339] [2024-11-18 14:11:06,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:06,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:06,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:06,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:06,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,791 INFO L87 Difference]: Start difference. First operand 2930 states and 4993 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:06,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:06,878 INFO L93 Difference]: Finished difference Result 6961 states and 11959 transitions. [2024-11-18 14:11:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:06,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2024-11-18 14:11:06,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:06,898 INFO L225 Difference]: With dead ends: 6961 [2024-11-18 14:11:06,899 INFO L226 Difference]: Without dead ends: 4518 [2024-11-18 14:11:06,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:06,907 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 125 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:06,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1275 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:06,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2024-11-18 14:11:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4510. [2024-11-18 14:11:07,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 3709 states have (on average 1.649501213265031) internal successors, (6118), 3717 states have internal predecessors, (6118), 768 states have call successors, (768), 30 states have call predecessors, (768), 32 states have return successors, (839), 764 states have call predecessors, (839), 765 states have call successors, (839) [2024-11-18 14:11:07,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 7725 transitions. [2024-11-18 14:11:07,087 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 7725 transitions. Word has length 181 [2024-11-18 14:11:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:07,087 INFO L471 AbstractCegarLoop]: Abstraction has 4510 states and 7725 transitions. [2024-11-18 14:11:07,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 7725 transitions. [2024-11-18 14:11:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 14:11:07,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:07,106 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:07,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:11:07,106 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:07,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:07,107 INFO L85 PathProgramCache]: Analyzing trace with hash 780024438, now seen corresponding path program 1 times [2024-11-18 14:11:07,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:07,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632150851] [2024-11-18 14:11:07,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:07,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:07,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:07,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632150851] [2024-11-18 14:11:07,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632150851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:07,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:07,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:07,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260899637] [2024-11-18 14:11:07,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:07,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:07,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:07,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:07,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:07,159 INFO L87 Difference]: Start difference. First operand 4510 states and 7725 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:07,326 INFO L93 Difference]: Finished difference Result 11132 states and 19188 transitions. [2024-11-18 14:11:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:07,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2024-11-18 14:11:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:07,368 INFO L225 Difference]: With dead ends: 11132 [2024-11-18 14:11:07,371 INFO L226 Difference]: Without dead ends: 7361 [2024-11-18 14:11:07,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:07,386 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 123 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:07,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1303 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:07,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2024-11-18 14:11:07,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 7353. [2024-11-18 14:11:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7353 states, 6059 states have (on average 1.6466413599603895) internal successors, (9977), 6067 states have internal predecessors, (9977), 1261 states have call successors, (1261), 30 states have call predecessors, (1261), 32 states have return successors, (1376), 1257 states have call predecessors, (1376), 1258 states have call successors, (1376) [2024-11-18 14:11:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 12614 transitions. [2024-11-18 14:11:07,720 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 12614 transitions. Word has length 182 [2024-11-18 14:11:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:07,721 INFO L471 AbstractCegarLoop]: Abstraction has 7353 states and 12614 transitions. [2024-11-18 14:11:07,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 12614 transitions. [2024-11-18 14:11:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 14:11:07,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:07,751 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:07,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:11:07,751 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:07,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1609883950, now seen corresponding path program 1 times [2024-11-18 14:11:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:07,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108776428] [2024-11-18 14:11:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:07,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108776428] [2024-11-18 14:11:07,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108776428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:07,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:07,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972056964] [2024-11-18 14:11:07,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:07,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:07,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:07,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:07,803 INFO L87 Difference]: Start difference. First operand 7353 states and 12614 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:08,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:08,106 INFO L93 Difference]: Finished difference Result 18552 states and 32041 transitions. [2024-11-18 14:11:08,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:08,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2024-11-18 14:11:08,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:08,159 INFO L225 Difference]: With dead ends: 18552 [2024-11-18 14:11:08,159 INFO L226 Difference]: Without dead ends: 12340 [2024-11-18 14:11:08,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:08,187 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 121 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:08,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1280 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12340 states. [2024-11-18 14:11:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12340 to 12332. [2024-11-18 14:11:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12332 states, 10216 states have (on average 1.6472200469851215) internal successors, (16828), 10224 states have internal predecessors, (16828), 2083 states have call successors, (2083), 30 states have call predecessors, (2083), 32 states have return successors, (2276), 2079 states have call predecessors, (2276), 2080 states have call successors, (2276) [2024-11-18 14:11:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12332 states to 12332 states and 21187 transitions. [2024-11-18 14:11:08,765 INFO L78 Accepts]: Start accepts. Automaton has 12332 states and 21187 transitions. Word has length 183 [2024-11-18 14:11:08,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:08,766 INFO L471 AbstractCegarLoop]: Abstraction has 12332 states and 21187 transitions. [2024-11-18 14:11:08,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 12332 states and 21187 transitions. [2024-11-18 14:11:08,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-18 14:11:08,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:08,806 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:08,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:11:08,806 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:08,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash -6959371, now seen corresponding path program 1 times [2024-11-18 14:11:08,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:08,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869940673] [2024-11-18 14:11:08,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:08,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-18 14:11:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869940673] [2024-11-18 14:11:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869940673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:08,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:08,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33252281] [2024-11-18 14:11:08,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:08,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:08,878 INFO L87 Difference]: Start difference. First operand 12332 states and 21187 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-18 14:11:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:09,370 INFO L93 Difference]: Finished difference Result 29510 states and 50620 transitions. [2024-11-18 14:11:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:09,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2024-11-18 14:11:09,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:09,422 INFO L225 Difference]: With dead ends: 29510 [2024-11-18 14:11:09,423 INFO L226 Difference]: Without dead ends: 19293 [2024-11-18 14:11:09,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:09,446 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 119 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:09,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1250 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19293 states. [2024-11-18 14:11:10,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19293 to 19285. [2024-11-18 14:11:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19285 states, 15966 states have (on average 1.622071902793436) internal successors, (25898), 15974 states have internal predecessors, (25898), 3286 states have call successors, (3286), 30 states have call predecessors, (3286), 32 states have return successors, (3623), 3282 states have call predecessors, (3623), 3283 states have call successors, (3623) [2024-11-18 14:11:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19285 states to 19285 states and 32807 transitions. [2024-11-18 14:11:10,172 INFO L78 Accepts]: Start accepts. Automaton has 19285 states and 32807 transitions. Word has length 165 [2024-11-18 14:11:10,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:10,173 INFO L471 AbstractCegarLoop]: Abstraction has 19285 states and 32807 transitions. [2024-11-18 14:11:10,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-18 14:11:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 19285 states and 32807 transitions. [2024-11-18 14:11:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:11:10,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:10,222 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:10,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:11:10,222 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:10,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1671768280, now seen corresponding path program 1 times [2024-11-18 14:11:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:10,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131630437] [2024-11-18 14:11:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-18 14:11:10,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:10,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131630437] [2024-11-18 14:11:10,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131630437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:10,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:10,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:10,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036728992] [2024-11-18 14:11:10,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:10,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:10,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:10,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:10,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:10,287 INFO L87 Difference]: Start difference. First operand 19285 states and 32807 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-18 14:11:11,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:11,209 INFO L93 Difference]: Finished difference Result 50942 states and 86998 transitions. [2024-11-18 14:11:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:11,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2024-11-18 14:11:11,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:11,313 INFO L225 Difference]: With dead ends: 50942 [2024-11-18 14:11:11,313 INFO L226 Difference]: Without dead ends: 34414 [2024-11-18 14:11:11,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:11,348 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 117 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:11,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1278 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:11,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34414 states. [2024-11-18 14:11:12,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34414 to 34406. [2024-11-18 14:11:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34406 states, 28637 states have (on average 1.6190243391416699) internal successors, (46364), 28645 states have internal predecessors, (46364), 5736 states have call successors, (5736), 30 states have call predecessors, (5736), 32 states have return successors, (6347), 5732 states have call predecessors, (6347), 5733 states have call successors, (6347) [2024-11-18 14:11:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34406 states to 34406 states and 58447 transitions. [2024-11-18 14:11:12,568 INFO L78 Accepts]: Start accepts. Automaton has 34406 states and 58447 transitions. Word has length 166 [2024-11-18 14:11:12,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:12,570 INFO L471 AbstractCegarLoop]: Abstraction has 34406 states and 58447 transitions. [2024-11-18 14:11:12,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-18 14:11:12,570 INFO L276 IsEmpty]: Start isEmpty. Operand 34406 states and 58447 transitions. [2024-11-18 14:11:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 14:11:12,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:12,630 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:12,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:11:12,630 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:12,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:12,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1358509329, now seen corresponding path program 1 times [2024-11-18 14:11:12,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:12,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582506389] [2024-11-18 14:11:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:12,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-18 14:11:12,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:12,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582506389] [2024-11-18 14:11:12,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582506389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:12,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:12,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:12,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139587033] [2024-11-18 14:11:12,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:12,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:12,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:12,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:12,696 INFO L87 Difference]: Start difference. First operand 34406 states and 58447 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-18 14:11:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:14,244 INFO L93 Difference]: Finished difference Result 93814 states and 159865 transitions. [2024-11-18 14:11:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:14,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2024-11-18 14:11:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:14,494 INFO L225 Difference]: With dead ends: 93814 [2024-11-18 14:11:14,495 INFO L226 Difference]: Without dead ends: 63081 [2024-11-18 14:11:14,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:14,566 INFO L432 NwaCegarLoop]: 645 mSDtfsCounter, 115 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:14,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1281 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63081 states. [2024-11-18 14:11:16,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63081 to 63073. [2024-11-18 14:11:16,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63073 states, 52791 states have (on average 1.6148396506980356) internal successors, (85249), 52799 states have internal predecessors, (85249), 10249 states have call successors, (10249), 30 states have call predecessors, (10249), 32 states have return successors, (11392), 10245 states have call predecessors, (11392), 10246 states have call successors, (11392) [2024-11-18 14:11:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63073 states to 63073 states and 106890 transitions. [2024-11-18 14:11:16,860 INFO L78 Accepts]: Start accepts. Automaton has 63073 states and 106890 transitions. Word has length 167 [2024-11-18 14:11:16,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:16,861 INFO L471 AbstractCegarLoop]: Abstraction has 63073 states and 106890 transitions. [2024-11-18 14:11:16,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-18 14:11:16,861 INFO L276 IsEmpty]: Start isEmpty. Operand 63073 states and 106890 transitions. [2024-11-18 14:11:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-18 14:11:16,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:16,925 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:16,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:11:16,925 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:16,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:16,926 INFO L85 PathProgramCache]: Analyzing trace with hash -833319343, now seen corresponding path program 1 times [2024-11-18 14:11:16,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:16,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332324683] [2024-11-18 14:11:16,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:16,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:16,980 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-18 14:11:16,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:16,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332324683] [2024-11-18 14:11:16,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332324683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:16,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:16,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933457703] [2024-11-18 14:11:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:16,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:16,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:16,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:16,983 INFO L87 Difference]: Start difference. First operand 63073 states and 106890 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:19,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:19,366 INFO L93 Difference]: Finished difference Result 118190 states and 200673 transitions. [2024-11-18 14:11:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:19,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 187 [2024-11-18 14:11:19,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:19,939 INFO L225 Difference]: With dead ends: 118190 [2024-11-18 14:11:19,940 INFO L226 Difference]: Without dead ends: 117954 [2024-11-18 14:11:19,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:19,982 INFO L432 NwaCegarLoop]: 651 mSDtfsCounter, 110 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:19,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1292 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:20,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117954 states. [2024-11-18 14:11:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117954 to 117946. [2024-11-18 14:11:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117946 states, 99296 states have (on average 1.6095008862391234) internal successors, (159817), 99304 states have internal predecessors, (159817), 18617 states have call successors, (18617), 30 states have call predecessors, (18617), 32 states have return successors, (20806), 18613 states have call predecessors, (20806), 18614 states have call successors, (20806) [2024-11-18 14:11:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117946 states to 117946 states and 199240 transitions. [2024-11-18 14:11:24,381 INFO L78 Accepts]: Start accepts. Automaton has 117946 states and 199240 transitions. Word has length 187 [2024-11-18 14:11:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:24,385 INFO L471 AbstractCegarLoop]: Abstraction has 117946 states and 199240 transitions. [2024-11-18 14:11:24,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 117946 states and 199240 transitions. [2024-11-18 14:11:24,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:11:24,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:24,566 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:24,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:11:24,566 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:24,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:24,567 INFO L85 PathProgramCache]: Analyzing trace with hash -766178866, now seen corresponding path program 1 times [2024-11-18 14:11:24,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:24,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061704379] [2024-11-18 14:11:24,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:24,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:11:24,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:24,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061704379] [2024-11-18 14:11:24,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061704379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:24,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829942999] [2024-11-18 14:11:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:24,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:24,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:24,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:24,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 14:11:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:25,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:11:25,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 14:11:25,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:11:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-18 14:11:25,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829942999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:11:25,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:11:25,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2024-11-18 14:11:25,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158221177] [2024-11-18 14:11:25,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:11:25,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-18 14:11:25,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:25,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-18 14:11:25,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2024-11-18 14:11:25,608 INFO L87 Difference]: Start difference. First operand 117946 states and 199240 transitions. Second operand has 28 states, 26 states have (on average 10.0) internal successors, (260), 24 states have internal predecessors, (260), 9 states have call successors, (55), 8 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) [2024-11-18 14:11:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:41,868 INFO L93 Difference]: Finished difference Result 470220 states and 818262 transitions. [2024-11-18 14:11:41,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-11-18 14:11:41,868 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 10.0) internal successors, (260), 24 states have internal predecessors, (260), 9 states have call successors, (55), 8 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) Word has length 169 [2024-11-18 14:11:41,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:44,203 INFO L225 Difference]: With dead ends: 470220 [2024-11-18 14:11:44,203 INFO L226 Difference]: Without dead ends: 469992 [2024-11-18 14:11:44,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3485 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1363, Invalid=11293, Unknown=0, NotChecked=0, Total=12656 [2024-11-18 14:11:44,407 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 9018 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 11765 mSolverCounterSat, 2932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9090 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 14697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2932 IncrementalHoareTripleChecker+Valid, 11765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:44,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9090 Valid, 5267 Invalid, 14697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2932 Valid, 11765 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-18 14:11:44,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469992 states.