./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product28.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 21774f07edc6bb728cb664e1a2361d7b986cd58290bb234c442a42ac18f35f10 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:52:55,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:52:55,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:52:55,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:52:55,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:52:55,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:52:55,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:52:55,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:52:55,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:52:55,493 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:52:55,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:52:55,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:52:55,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:52:55,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:52:55,496 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:52:55,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:52:55,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:52:55,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:52:55,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:52:55,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:52:55,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:52:55,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:52:55,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:52:55,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:52:55,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:52:55,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:52:55,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:52:55,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:52:55,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:52:55,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:52:55,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:52:55,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:52:55,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:52:55,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:52:55,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:52:55,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:52:55,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:52:55,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:52:55,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:52:55,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:52:55,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:52:55,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:52:55,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21774f07edc6bb728cb664e1a2361d7b986cd58290bb234c442a42ac18f35f10 [2024-10-24 00:52:55,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:52:55,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:52:55,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:52:55,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:52:55,747 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:52:55,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c [2024-10-24 00:52:57,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:52:57,271 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:52:57,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c [2024-10-24 00:52:57,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01dafc088/0277b2c9e52c4ce1a378c490c7e894d0/FLAG53e8273f3 [2024-10-24 00:52:57,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01dafc088/0277b2c9e52c4ce1a378c490c7e894d0 [2024-10-24 00:52:57,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:52:57,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:52:57,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:52:57,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:52:57,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:52:57,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:57,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1221185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57, skipping insertion in model container [2024-10-24 00:52:57,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:57,377 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:52:57,813 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c[64121,64134] [2024-10-24 00:52:57,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:52:57,828 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:52:57,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-10-24 00:52:57,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [351] [2024-10-24 00:52:57,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [694] [2024-10-24 00:52:57,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [833] [2024-10-24 00:52:57,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [1199] [2024-10-24 00:52:57,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1246] [2024-10-24 00:52:57,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1263] [2024-10-24 00:52:57,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1476] [2024-10-24 00:52:57,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1511] [2024-10-24 00:52:57,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1908] [2024-10-24 00:52:57,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2977] [2024-10-24 00:52:57,900 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c[64121,64134] [2024-10-24 00:52:57,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:52:57,929 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:52:57,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57 WrapperNode [2024-10-24 00:52:57,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:52:57,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:52:57,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:52:57,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:52:57,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:57,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:57,995 INFO L138 Inliner]: procedures = 129, calls = 201, calls flagged for inlining = 56, calls inlined = 46, statements flattened = 883 [2024-10-24 00:52:57,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:52:57,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:52:57,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:52:57,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:52:58,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,012 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,037 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-24 00:52:58,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:52:58,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:52:58,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:52:58,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:52:58,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (1/1) ... [2024-10-24 00:52:58,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:52:58,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:52:58,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 00:52:58,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 00:52:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-24 00:52:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-24 00:52:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-24 00:52:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-24 00:52:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-24 00:52:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-24 00:52:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:52:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:52:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:52:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:52:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-24 00:52:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-24 00:52:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:52:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:52:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-24 00:52:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-24 00:52:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-24 00:52:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-24 00:52:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:52:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:52:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-24 00:52:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-24 00:52:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:52:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:52:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:52:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-24 00:52:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-24 00:52:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-24 00:52:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-24 00:52:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:52:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:52:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:52:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-24 00:52:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:52:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-24 00:52:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:52:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:52:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:52:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:52:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:52:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:52:58,344 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:52:58,346 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:52:59,056 INFO L? ?]: Removed 403 outVars from TransFormulas that were not future-live. [2024-10-24 00:52:59,056 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:52:59,116 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:52:59,117 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:52:59,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:59 BoogieIcfgContainer [2024-10-24 00:52:59,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:52:59,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:52:59,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:52:59,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:52:59,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:52:57" (1/3) ... [2024-10-24 00:52:59,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea32b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:59, skipping insertion in model container [2024-10-24 00:52:59,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:52:57" (2/3) ... [2024-10-24 00:52:59,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea32b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:52:59, skipping insertion in model container [2024-10-24 00:52:59,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:52:59" (3/3) ... [2024-10-24 00:52:59,124 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product28.cil.c [2024-10-24 00:52:59,138 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:52:59,138 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:52:59,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:52:59,213 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;@3feea4d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:52:59,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:52:59,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 307 states, 231 states have (on average 1.5714285714285714) internal successors, (363), 235 states have internal predecessors, (363), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 00:52:59,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 00:52:59,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:52:59,239 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-24 00:52:59,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:52:59,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:52:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1214777307, now seen corresponding path program 1 times [2024-10-24 00:52:59,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:52:59,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306813355] [2024-10-24 00:52:59,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:52:59,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:52:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:52:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:52:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:52:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:52:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:52:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:52:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:52:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:52:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:52:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:52:59,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:52:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:53:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:53:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:53:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:53:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:53:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:53:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:53:00,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:00,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306813355] [2024-10-24 00:53:00,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306813355] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:00,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367328216] [2024-10-24 00:53:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:00,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:00,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:00,027 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) [2024-10-24 00:53:00,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 00:53:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:53:00,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:53:00,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:53:00,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367328216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:00,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:53:00,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-10-24 00:53:00,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456964993] [2024-10-24 00:53:00,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:00,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:53:00,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:00,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:53:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:53:00,393 INFO L87 Difference]: Start difference. First operand has 307 states, 231 states have (on average 1.5714285714285714) internal successors, (363), 235 states have internal predecessors, (363), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:00,478 INFO L93 Difference]: Finished difference Result 473 states and 704 transitions. [2024-10-24 00:53:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:53:00,480 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 116 [2024-10-24 00:53:00,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:00,490 INFO L225 Difference]: With dead ends: 473 [2024-10-24 00:53:00,490 INFO L226 Difference]: Without dead ends: 304 [2024-10-24 00:53:00,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:53:00,497 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:00,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:53:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-24 00:53:00,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-10-24 00:53:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 229 states have (on average 1.554585152838428) internal successors, (356), 232 states have internal predecessors, (356), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 00:53:00,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 459 transitions. [2024-10-24 00:53:00,550 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 459 transitions. Word has length 116 [2024-10-24 00:53:00,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:00,552 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 459 transitions. [2024-10-24 00:53:00,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:00,552 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 459 transitions. [2024-10-24 00:53:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:53:00,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:00,556 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-24 00:53:00,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:53:00,760 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 [2024-10-24 00:53:00,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:00,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:00,761 INFO L85 PathProgramCache]: Analyzing trace with hash 467763784, now seen corresponding path program 1 times [2024-10-24 00:53:00,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:00,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495963909] [2024-10-24 00:53:00,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:00,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:53:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:53:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:53:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:53:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:53:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:53:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:53:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:53:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:53:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:00,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:53:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:53:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:53:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:53:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:53:01,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:01,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495963909] [2024-10-24 00:53:01,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495963909] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:01,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408239000] [2024-10-24 00:53:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:01,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:01,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:01,017 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) [2024-10-24 00:53:01,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 00:53:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:53:01,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:53:01,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:53:01,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408239000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:01,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:53:01,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-24 00:53:01,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664761371] [2024-10-24 00:53:01,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:01,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:53:01,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:01,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:53:01,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:53:01,384 INFO L87 Difference]: Start difference. First operand 304 states and 459 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:01,443 INFO L93 Difference]: Finished difference Result 469 states and 691 transitions. [2024-10-24 00:53:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:53:01,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-10-24 00:53:01,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:01,447 INFO L225 Difference]: With dead ends: 469 [2024-10-24 00:53:01,447 INFO L226 Difference]: Without dead ends: 306 [2024-10-24 00:53:01,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:53:01,449 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:01,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 897 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:53:01,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-10-24 00:53:01,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-10-24 00:53:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 231 states have (on average 1.5497835497835497) internal successors, (358), 234 states have internal predecessors, (358), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 00:53:01,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 461 transitions. [2024-10-24 00:53:01,467 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 461 transitions. Word has length 117 [2024-10-24 00:53:01,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:01,468 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 461 transitions. [2024-10-24 00:53:01,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:01,468 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 461 transitions. [2024-10-24 00:53:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 00:53:01,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:01,471 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:01,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 00:53:01,671 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 [2024-10-24 00:53:01,672 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:01,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:01,673 INFO L85 PathProgramCache]: Analyzing trace with hash 38593327, now seen corresponding path program 1 times [2024-10-24 00:53:01,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:01,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26045259] [2024-10-24 00:53:01,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:01,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:53:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:53:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:53:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:53:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:53:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:53:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:53:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:53:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:53:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:53:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:53:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:53:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:53:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:53:01,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:01,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26045259] [2024-10-24 00:53:01,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26045259] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:01,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593246081] [2024-10-24 00:53:01,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:01,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:01,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:01,906 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) [2024-10-24 00:53:01,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 00:53:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:53:02,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:53:02,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:53:02,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593246081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:02,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:53:02,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-24 00:53:02,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106874457] [2024-10-24 00:53:02,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:02,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:53:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:53:02,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:53:02,165 INFO L87 Difference]: Start difference. First operand 306 states and 461 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:02,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:02,216 INFO L93 Difference]: Finished difference Result 638 states and 974 transitions. [2024-10-24 00:53:02,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:53:02,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 122 [2024-10-24 00:53:02,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:02,219 INFO L225 Difference]: With dead ends: 638 [2024-10-24 00:53:02,219 INFO L226 Difference]: Without dead ends: 354 [2024-10-24 00:53:02,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:53:02,224 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 95 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:02,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 860 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:53:02,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-10-24 00:53:02,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 349. [2024-10-24 00:53:02,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.5627376425855513) internal successors, (411), 266 states have internal predecessors, (411), 63 states have call successors, (63), 22 states have call predecessors, (63), 22 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 00:53:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 536 transitions. [2024-10-24 00:53:02,252 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 536 transitions. Word has length 122 [2024-10-24 00:53:02,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:02,254 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 536 transitions. [2024-10-24 00:53:02,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 536 transitions. [2024-10-24 00:53:02,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 00:53:02,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:02,258 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:02,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 00:53:02,459 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 [2024-10-24 00:53:02,459 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:02,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:02,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1600090268, now seen corresponding path program 1 times [2024-10-24 00:53:02,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:02,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263460214] [2024-10-24 00:53:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:02,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:53:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:53:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:53:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 00:53:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:53:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:53:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:53:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:53:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:53:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:53:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:53:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:53:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:53:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:53:02,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:02,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263460214] [2024-10-24 00:53:02,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263460214] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:02,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606053008] [2024-10-24 00:53:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:02,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:02,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:02,694 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) [2024-10-24 00:53:02,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 00:53:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:02,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:53:02,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-24 00:53:03,002 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:53:03,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606053008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:03,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:53:03,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-24 00:53:03,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543584686] [2024-10-24 00:53:03,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:03,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:53:03,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:03,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:53:03,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:53:03,006 INFO L87 Difference]: Start difference. First operand 349 states and 536 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:03,081 INFO L93 Difference]: Finished difference Result 693 states and 1066 transitions. [2024-10-24 00:53:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:53:03,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 123 [2024-10-24 00:53:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:03,085 INFO L225 Difference]: With dead ends: 693 [2024-10-24 00:53:03,086 INFO L226 Difference]: Without dead ends: 351 [2024-10-24 00:53:03,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:53:03,088 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 2 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:03,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1753 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:53:03,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-10-24 00:53:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-10-24 00:53:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 264 states have (on average 1.5606060606060606) internal successors, (412), 268 states have internal predecessors, (412), 63 states have call successors, (63), 22 states have call predecessors, (63), 23 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2024-10-24 00:53:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 539 transitions. [2024-10-24 00:53:03,106 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 539 transitions. Word has length 123 [2024-10-24 00:53:03,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:03,106 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 539 transitions. [2024-10-24 00:53:03,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 539 transitions. [2024-10-24 00:53:03,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 00:53:03,110 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:03,110 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:03,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 00:53:03,311 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 [2024-10-24 00:53:03,312 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:03,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:03,312 INFO L85 PathProgramCache]: Analyzing trace with hash -827392255, now seen corresponding path program 1 times [2024-10-24 00:53:03,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:03,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521809892] [2024-10-24 00:53:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:03,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:53:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:53:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:53:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:53:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:53:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:53:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:53:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:53:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:53:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:53:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:53:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:53:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:53:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521809892] [2024-10-24 00:53:03,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521809892] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736507737] [2024-10-24 00:53:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:03,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:03,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:03,547 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) [2024-10-24 00:53:03,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 00:53:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:03,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:53:03,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:03,828 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-24 00:53:03,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:53:03,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736507737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:03,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:53:03,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-10-24 00:53:03,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931878573] [2024-10-24 00:53:03,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:03,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:53:03,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:03,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:53:03,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:53:03,829 INFO L87 Difference]: Start difference. First operand 351 states and 539 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:03,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:03,903 INFO L93 Difference]: Finished difference Result 695 states and 1071 transitions. [2024-10-24 00:53:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:53:03,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-24 00:53:03,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:03,909 INFO L225 Difference]: With dead ends: 695 [2024-10-24 00:53:03,909 INFO L226 Difference]: Without dead ends: 353 [2024-10-24 00:53:03,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:53:03,910 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 2 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:03,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1739 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:53:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-10-24 00:53:03,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2024-10-24 00:53:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 265 states have (on average 1.558490566037736) internal successors, (413), 270 states have internal predecessors, (413), 63 states have call successors, (63), 22 states have call predecessors, (63), 24 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2024-10-24 00:53:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 545 transitions. [2024-10-24 00:53:03,929 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 545 transitions. Word has length 124 [2024-10-24 00:53:03,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:03,930 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 545 transitions. [2024-10-24 00:53:03,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:03,930 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 545 transitions. [2024-10-24 00:53:03,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 00:53:03,932 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:03,932 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:03,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 00:53:04,133 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 [2024-10-24 00:53:04,133 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:04,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:04,133 INFO L85 PathProgramCache]: Analyzing trace with hash 957599854, now seen corresponding path program 1 times [2024-10-24 00:53:04,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250401470] [2024-10-24 00:53:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:53:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:53:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:53:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:53:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:53:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:53:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:53:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:53:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:53:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:53:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:53:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:53:04,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250401470] [2024-10-24 00:53:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250401470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:04,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:04,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 00:53:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120830700] [2024-10-24 00:53:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:04,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 00:53:04,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 00:53:04,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:53:04,308 INFO L87 Difference]: Start difference. First operand 353 states and 545 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:05,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:05,626 INFO L93 Difference]: Finished difference Result 753 states and 1170 transitions. [2024-10-24 00:53:05,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:53:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 125 [2024-10-24 00:53:05,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:05,629 INFO L225 Difference]: With dead ends: 753 [2024-10-24 00:53:05,629 INFO L226 Difference]: Without dead ends: 419 [2024-10-24 00:53:05,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:53:05,632 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 743 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:05,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 817 Invalid, 2172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:53:05,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-24 00:53:05,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 353. [2024-10-24 00:53:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 265 states have (on average 1.558490566037736) internal successors, (413), 270 states have internal predecessors, (413), 63 states have call successors, (63), 22 states have call predecessors, (63), 24 states have return successors, (68), 62 states have call predecessors, (68), 62 states have call successors, (68) [2024-10-24 00:53:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 544 transitions. [2024-10-24 00:53:05,660 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 544 transitions. Word has length 125 [2024-10-24 00:53:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:05,661 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 544 transitions. [2024-10-24 00:53:05,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:05,661 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 544 transitions. [2024-10-24 00:53:05,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 00:53:05,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:05,663 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:05,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:53:05,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:05,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:05,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1198686159, now seen corresponding path program 2 times [2024-10-24 00:53:05,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:05,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063160964] [2024-10-24 00:53:05,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:05,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:53:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:53:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:53:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:53:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:53:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:53:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:53:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:53:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:53:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:53:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:53:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:05,857 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:53:05,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:05,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063160964] [2024-10-24 00:53:05,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063160964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:05,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:05,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 00:53:05,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048809034] [2024-10-24 00:53:05,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:05,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 00:53:05,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 00:53:05,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 00:53:05,860 INFO L87 Difference]: Start difference. First operand 353 states and 544 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:07,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:07,075 INFO L93 Difference]: Finished difference Result 755 states and 1173 transitions. [2024-10-24 00:53:07,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:53:07,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 126 [2024-10-24 00:53:07,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:07,078 INFO L225 Difference]: With dead ends: 755 [2024-10-24 00:53:07,078 INFO L226 Difference]: Without dead ends: 421 [2024-10-24 00:53:07,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:53:07,080 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 740 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:07,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 817 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:53:07,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-10-24 00:53:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 355. [2024-10-24 00:53:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 266 states have (on average 1.556390977443609) internal successors, (414), 272 states have internal predecessors, (414), 63 states have call successors, (63), 22 states have call predecessors, (63), 25 states have return successors, (70), 62 states have call predecessors, (70), 62 states have call successors, (70) [2024-10-24 00:53:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 547 transitions. [2024-10-24 00:53:07,098 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 547 transitions. Word has length 126 [2024-10-24 00:53:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:07,098 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 547 transitions. [2024-10-24 00:53:07,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-24 00:53:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 547 transitions. [2024-10-24 00:53:07,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 00:53:07,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:07,100 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:07,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:53:07,100 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:07,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:07,101 INFO L85 PathProgramCache]: Analyzing trace with hash -240580077, now seen corresponding path program 1 times [2024-10-24 00:53:07,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:07,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514176037] [2024-10-24 00:53:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:07,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:53:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:53:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:53:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:53:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:53:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:53:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:53:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:53:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:53:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:53:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:53:07,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:07,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514176037] [2024-10-24 00:53:07,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514176037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:07,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:07,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 00:53:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316780448] [2024-10-24 00:53:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:07,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:53:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:07,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:53:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:53:07,315 INFO L87 Difference]: Start difference. First operand 355 states and 547 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 00:53:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:08,946 INFO L93 Difference]: Finished difference Result 753 states and 1168 transitions. [2024-10-24 00:53:08,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:53:08,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2024-10-24 00:53:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:08,949 INFO L225 Difference]: With dead ends: 753 [2024-10-24 00:53:08,949 INFO L226 Difference]: Without dead ends: 421 [2024-10-24 00:53:08,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-24 00:53:08,950 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 743 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:08,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 1174 Invalid, 3529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 3283 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:53:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-10-24 00:53:08,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 355. [2024-10-24 00:53:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 266 states have (on average 1.556390977443609) internal successors, (414), 272 states have internal predecessors, (414), 63 states have call successors, (63), 22 states have call predecessors, (63), 25 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2024-10-24 00:53:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 546 transitions. [2024-10-24 00:53:08,971 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 546 transitions. Word has length 127 [2024-10-24 00:53:08,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:08,971 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 546 transitions. [2024-10-24 00:53:08,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 00:53:08,972 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 546 transitions. [2024-10-24 00:53:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 00:53:08,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:08,973 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:08,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:53:08,973 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:08,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:08,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1009782554, now seen corresponding path program 2 times [2024-10-24 00:53:08,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:08,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760182052] [2024-10-24 00:53:08,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:08,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:53:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:53:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:53:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:53:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:53:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:53:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:53:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:53:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:53:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:53:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:53:09,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:09,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760182052] [2024-10-24 00:53:09,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760182052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:09,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:09,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 00:53:09,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988934411] [2024-10-24 00:53:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:09,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:53:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:53:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:53:09,154 INFO L87 Difference]: Start difference. First operand 355 states and 546 transitions. Second operand has 11 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 00:53:10,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:10,771 INFO L93 Difference]: Finished difference Result 755 states and 1174 transitions. [2024-10-24 00:53:10,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:53:10,772 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 128 [2024-10-24 00:53:10,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:10,774 INFO L225 Difference]: With dead ends: 755 [2024-10-24 00:53:10,774 INFO L226 Difference]: Without dead ends: 423 [2024-10-24 00:53:10,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-24 00:53:10,776 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 740 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3317 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 3317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:10,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1175 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 3317 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:53:10,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-10-24 00:53:10,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 357. [2024-10-24 00:53:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 267 states have (on average 1.554307116104869) internal successors, (415), 274 states have internal predecessors, (415), 63 states have call successors, (63), 22 states have call predecessors, (63), 26 states have return successors, (74), 62 states have call predecessors, (74), 62 states have call successors, (74) [2024-10-24 00:53:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 552 transitions. [2024-10-24 00:53:10,795 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 552 transitions. Word has length 128 [2024-10-24 00:53:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:10,795 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 552 transitions. [2024-10-24 00:53:10,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 00:53:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 552 transitions. [2024-10-24 00:53:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 00:53:10,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:10,797 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:10,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:53:10,797 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:10,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash -810515464, now seen corresponding path program 1 times [2024-10-24 00:53:10,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:10,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549451557] [2024-10-24 00:53:10,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:10,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:53:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:53:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:53:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:53:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:53:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:53:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:53:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:53:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:53:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:53:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:10,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:10,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549451557] [2024-10-24 00:53:10,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549451557] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:10,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010686091] [2024-10-24 00:53:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:10,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:10,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:10,930 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) [2024-10-24 00:53:10,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 00:53:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:11,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:53:11,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:11,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:53:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:11,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010686091] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:53:11,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:53:11,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-10-24 00:53:11,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348195723] [2024-10-24 00:53:11,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:53:11,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 00:53:11,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:11,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 00:53:11,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:11,292 INFO L87 Difference]: Start difference. First operand 357 states and 552 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 00:53:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:12,288 INFO L93 Difference]: Finished difference Result 896 states and 1459 transitions. [2024-10-24 00:53:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 00:53:12,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 129 [2024-10-24 00:53:12,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:12,293 INFO L225 Difference]: With dead ends: 896 [2024-10-24 00:53:12,293 INFO L226 Difference]: Without dead ends: 733 [2024-10-24 00:53:12,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-24 00:53:12,295 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1185 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:12,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 950 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:53:12,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-10-24 00:53:12,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 652. [2024-10-24 00:53:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 498 states have (on average 1.6164658634538152) internal successors, (805), 505 states have internal predecessors, (805), 127 states have call successors, (127), 22 states have call predecessors, (127), 26 states have return successors, (148), 126 states have call predecessors, (148), 126 states have call successors, (148) [2024-10-24 00:53:12,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1080 transitions. [2024-10-24 00:53:12,325 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1080 transitions. Word has length 129 [2024-10-24 00:53:12,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:12,326 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 1080 transitions. [2024-10-24 00:53:12,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 00:53:12,326 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1080 transitions. [2024-10-24 00:53:12,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 00:53:12,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:12,329 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:12,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 00:53:12,529 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 [2024-10-24 00:53:12,529 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:12,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:12,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1231985941, now seen corresponding path program 1 times [2024-10-24 00:53:12,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:12,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402538988] [2024-10-24 00:53:12,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:12,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:53:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:53:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:53:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:53:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:53:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:53:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:53:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:53:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:53:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 00:53:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:12,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:12,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402538988] [2024-10-24 00:53:12,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402538988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:12,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:12,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:12,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490647925] [2024-10-24 00:53:12,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:12,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:12,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:12,637 INFO L87 Difference]: Start difference. First operand 652 states and 1080 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:13,497 INFO L93 Difference]: Finished difference Result 1607 states and 2728 transitions. [2024-10-24 00:53:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2024-10-24 00:53:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:13,502 INFO L225 Difference]: With dead ends: 1607 [2024-10-24 00:53:13,502 INFO L226 Difference]: Without dead ends: 1015 [2024-10-24 00:53:13,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:13,505 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 832 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:13,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 601 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:53:13,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-10-24 00:53:13,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 944. [2024-10-24 00:53:13,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 726 states have (on average 1.628099173553719) internal successors, (1182), 733 states have internal predecessors, (1182), 191 states have call successors, (191), 22 states have call predecessors, (191), 26 states have return successors, (222), 190 states have call predecessors, (222), 190 states have call successors, (222) [2024-10-24 00:53:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1595 transitions. [2024-10-24 00:53:13,539 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1595 transitions. Word has length 135 [2024-10-24 00:53:13,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:13,540 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1595 transitions. [2024-10-24 00:53:13,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:13,540 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1595 transitions. [2024-10-24 00:53:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 00:53:13,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:13,544 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:13,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:53:13,544 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:13,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:13,544 INFO L85 PathProgramCache]: Analyzing trace with hash -687446125, now seen corresponding path program 1 times [2024-10-24 00:53:13,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:13,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623065216] [2024-10-24 00:53:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:13,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:53:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:53:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:53:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:53:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:53:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:53:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:53:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:53:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 00:53:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 00:53:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:13,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:13,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623065216] [2024-10-24 00:53:13,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623065216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:13,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:13,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:13,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522168841] [2024-10-24 00:53:13,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:13,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:13,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:13,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:13,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:13,665 INFO L87 Difference]: Start difference. First operand 944 states and 1595 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:14,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:14,531 INFO L93 Difference]: Finished difference Result 2304 states and 3955 transitions. [2024-10-24 00:53:14,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:14,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-10-24 00:53:14,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:14,539 INFO L225 Difference]: With dead ends: 2304 [2024-10-24 00:53:14,539 INFO L226 Difference]: Without dead ends: 1470 [2024-10-24 00:53:14,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:14,542 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 830 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:14,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 576 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:53:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2024-10-24 00:53:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1399. [2024-10-24 00:53:14,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1086 states have (on average 1.6353591160220995) internal successors, (1776), 1093 states have internal predecessors, (1776), 286 states have call successors, (286), 22 states have call predecessors, (286), 26 states have return successors, (317), 285 states have call predecessors, (317), 285 states have call successors, (317) [2024-10-24 00:53:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 2379 transitions. [2024-10-24 00:53:14,591 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 2379 transitions. Word has length 136 [2024-10-24 00:53:14,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:14,591 INFO L471 AbstractCegarLoop]: Abstraction has 1399 states and 2379 transitions. [2024-10-24 00:53:14,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 2379 transitions. [2024-10-24 00:53:14,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 00:53:14,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:14,597 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:14,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:53:14,597 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:14,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:14,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1141789879, now seen corresponding path program 1 times [2024-10-24 00:53:14,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:14,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5785756] [2024-10-24 00:53:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:53:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:53:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:53:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:53:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:53:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:53:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:53:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:53:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 00:53:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 00:53:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:14,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:14,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5785756] [2024-10-24 00:53:14,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5785756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:14,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:14,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:14,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534438684] [2024-10-24 00:53:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:14,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:14,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:14,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:14,696 INFO L87 Difference]: Start difference. First operand 1399 states and 2379 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:15,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:15,467 INFO L93 Difference]: Finished difference Result 3322 states and 5767 transitions. [2024-10-24 00:53:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:15,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-10-24 00:53:15,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:15,478 INFO L225 Difference]: With dead ends: 3322 [2024-10-24 00:53:15,478 INFO L226 Difference]: Without dead ends: 2153 [2024-10-24 00:53:15,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:15,483 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 828 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:15,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 571 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:53:15,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2024-10-24 00:53:15,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2082. [2024-10-24 00:53:15,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 1646 states have (on average 1.6415552855407047) internal successors, (2702), 1653 states have internal predecessors, (2702), 409 states have call successors, (409), 22 states have call predecessors, (409), 26 states have return successors, (456), 408 states have call predecessors, (456), 408 states have call successors, (456) [2024-10-24 00:53:15,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 3567 transitions. [2024-10-24 00:53:15,564 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 3567 transitions. Word has length 137 [2024-10-24 00:53:15,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:15,565 INFO L471 AbstractCegarLoop]: Abstraction has 2082 states and 3567 transitions. [2024-10-24 00:53:15,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:15,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 3567 transitions. [2024-10-24 00:53:15,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 00:53:15,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:15,575 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:15,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:53:15,576 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:15,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:15,576 INFO L85 PathProgramCache]: Analyzing trace with hash -143305804, now seen corresponding path program 1 times [2024-10-24 00:53:15,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:15,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444144063] [2024-10-24 00:53:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:15,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:53:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:53:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:53:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:53:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:53:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:53:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:53:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:53:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 00:53:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 00:53:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444144063] [2024-10-24 00:53:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444144063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:15,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:15,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:15,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798423759] [2024-10-24 00:53:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:15,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:15,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:15,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:15,683 INFO L87 Difference]: Start difference. First operand 2082 states and 3567 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:16,438 INFO L93 Difference]: Finished difference Result 4892 states and 8572 transitions. [2024-10-24 00:53:16,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:16,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2024-10-24 00:53:16,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:16,453 INFO L225 Difference]: With dead ends: 4892 [2024-10-24 00:53:16,453 INFO L226 Difference]: Without dead ends: 3237 [2024-10-24 00:53:16,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:16,460 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 826 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:16,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 570 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:53:16,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2024-10-24 00:53:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3166. [2024-10-24 00:53:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2551 states have (on average 1.6456291650333204) internal successors, (4198), 2558 states have internal predecessors, (4198), 588 states have call successors, (588), 22 states have call predecessors, (588), 26 states have return successors, (661), 587 states have call predecessors, (661), 587 states have call successors, (661) [2024-10-24 00:53:16,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 5447 transitions. [2024-10-24 00:53:16,581 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 5447 transitions. Word has length 138 [2024-10-24 00:53:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:16,582 INFO L471 AbstractCegarLoop]: Abstraction has 3166 states and 5447 transitions. [2024-10-24 00:53:16,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 5447 transitions. [2024-10-24 00:53:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 00:53:16,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:16,593 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:16,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:53:16,593 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:16,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:16,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1355236237, now seen corresponding path program 1 times [2024-10-24 00:53:16,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:16,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963896467] [2024-10-24 00:53:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:16,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:53:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:53:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:53:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:53:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:53:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:53:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:53:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:53:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 00:53:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 00:53:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:16,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963896467] [2024-10-24 00:53:16,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963896467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:16,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:16,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057851363] [2024-10-24 00:53:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:16,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:16,676 INFO L87 Difference]: Start difference. First operand 3166 states and 5447 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:17,451 INFO L93 Difference]: Finished difference Result 7723 states and 13584 transitions. [2024-10-24 00:53:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:17,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-10-24 00:53:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:17,473 INFO L225 Difference]: With dead ends: 7723 [2024-10-24 00:53:17,473 INFO L226 Difference]: Without dead ends: 5207 [2024-10-24 00:53:17,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:17,480 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 824 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:17,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 585 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:53:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5207 states. [2024-10-24 00:53:17,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5207 to 5136. [2024-10-24 00:53:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5136 states, 4145 states have (on average 1.6378769601930037) internal successors, (6789), 4152 states have internal predecessors, (6789), 964 states have call successors, (964), 22 states have call predecessors, (964), 26 states have return successors, (1081), 963 states have call predecessors, (1081), 963 states have call successors, (1081) [2024-10-24 00:53:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5136 states to 5136 states and 8834 transitions. [2024-10-24 00:53:17,661 INFO L78 Accepts]: Start accepts. Automaton has 5136 states and 8834 transitions. Word has length 139 [2024-10-24 00:53:17,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:17,661 INFO L471 AbstractCegarLoop]: Abstraction has 5136 states and 8834 transitions. [2024-10-24 00:53:17,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5136 states and 8834 transitions. [2024-10-24 00:53:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 00:53:17,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:17,724 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:17,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:53:17,724 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:17,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash 5795832, now seen corresponding path program 1 times [2024-10-24 00:53:17,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:17,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870726617] [2024-10-24 00:53:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:17,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:53:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:53:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:53:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:53:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:53:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:53:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:53:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:53:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 00:53:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 00:53:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:17,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:17,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870726617] [2024-10-24 00:53:17,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870726617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:17,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:17,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:17,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764313515] [2024-10-24 00:53:17,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:17,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:17,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:17,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:17,837 INFO L87 Difference]: Start difference. First operand 5136 states and 8834 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:18,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:18,791 INFO L93 Difference]: Finished difference Result 12704 states and 22332 transitions. [2024-10-24 00:53:18,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:18,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-10-24 00:53:18,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:18,829 INFO L225 Difference]: With dead ends: 12704 [2024-10-24 00:53:18,829 INFO L226 Difference]: Without dead ends: 8584 [2024-10-24 00:53:18,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:18,840 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 822 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:18,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 585 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:53:18,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8584 states. [2024-10-24 00:53:19,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8584 to 8513. [2024-10-24 00:53:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8513 states, 6916 states have (on average 1.6356275303643724) internal successors, (11312), 6923 states have internal predecessors, (11312), 1570 states have call successors, (1570), 22 states have call predecessors, (1570), 26 states have return successors, (1765), 1569 states have call predecessors, (1765), 1569 states have call successors, (1765) [2024-10-24 00:53:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8513 states to 8513 states and 14647 transitions. [2024-10-24 00:53:19,159 INFO L78 Accepts]: Start accepts. Automaton has 8513 states and 14647 transitions. Word has length 140 [2024-10-24 00:53:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:19,160 INFO L471 AbstractCegarLoop]: Abstraction has 8513 states and 14647 transitions. [2024-10-24 00:53:19,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8513 states and 14647 transitions. [2024-10-24 00:53:19,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 00:53:19,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:19,186 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:19,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:53:19,186 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:19,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash 460903925, now seen corresponding path program 1 times [2024-10-24 00:53:19,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:19,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502772949] [2024-10-24 00:53:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:53:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:53:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:53:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:53:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:53:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:53:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:53:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:53:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 00:53:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 00:53:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:19,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:19,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502772949] [2024-10-24 00:53:19,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502772949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:19,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:19,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:19,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214564973] [2024-10-24 00:53:19,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:19,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:19,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:19,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:19,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:19,276 INFO L87 Difference]: Start difference. First operand 8513 states and 14647 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:20,222 INFO L93 Difference]: Finished difference Result 22056 states and 38731 transitions. [2024-10-24 00:53:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2024-10-24 00:53:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:20,275 INFO L225 Difference]: With dead ends: 22056 [2024-10-24 00:53:20,275 INFO L226 Difference]: Without dead ends: 14968 [2024-10-24 00:53:20,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:20,297 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 820 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:20,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 595 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:53:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14968 states. [2024-10-24 00:53:20,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14968 to 14897. [2024-10-24 00:53:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14897 states, 12097 states have (on average 1.6259403157807721) internal successors, (19669), 12104 states have internal predecessors, (19669), 2773 states have call successors, (2773), 22 states have call predecessors, (2773), 26 states have return successors, (3112), 2772 states have call predecessors, (3112), 2772 states have call successors, (3112) [2024-10-24 00:53:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14897 states to 14897 states and 25554 transitions. [2024-10-24 00:53:20,886 INFO L78 Accepts]: Start accepts. Automaton has 14897 states and 25554 transitions. Word has length 141 [2024-10-24 00:53:20,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:20,887 INFO L471 AbstractCegarLoop]: Abstraction has 14897 states and 25554 transitions. [2024-10-24 00:53:20,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 14897 states and 25554 transitions. [2024-10-24 00:53:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 00:53:20,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:20,924 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:20,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:53:20,924 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:20,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1009086393, now seen corresponding path program 1 times [2024-10-24 00:53:20,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:20,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527262251] [2024-10-24 00:53:20,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:20,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:53:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:53:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:53:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:53:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:53:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:53:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:53:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 00:53:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 00:53:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 00:53:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:21,073 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:21,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:21,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527262251] [2024-10-24 00:53:21,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527262251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:21,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:21,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:21,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208517852] [2024-10-24 00:53:21,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:21,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:21,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:21,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:21,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:21,075 INFO L87 Difference]: Start difference. First operand 14897 states and 25554 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:22,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:22,203 INFO L93 Difference]: Finished difference Result 39415 states and 69117 transitions. [2024-10-24 00:53:22,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:22,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-10-24 00:53:22,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:22,297 INFO L225 Difference]: With dead ends: 39415 [2024-10-24 00:53:22,297 INFO L226 Difference]: Without dead ends: 26535 [2024-10-24 00:53:22,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:22,330 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 818 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:22,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 571 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:53:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26535 states. [2024-10-24 00:53:23,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26535 to 26464. [2024-10-24 00:53:23,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26464 states, 21625 states have (on average 1.6219190751445087) internal successors, (35074), 21632 states have internal predecessors, (35074), 4812 states have call successors, (4812), 22 states have call predecessors, (4812), 26 states have return successors, (5425), 4811 states have call predecessors, (5425), 4811 states have call successors, (5425) [2024-10-24 00:53:23,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26464 states to 26464 states and 45311 transitions. [2024-10-24 00:53:23,398 INFO L78 Accepts]: Start accepts. Automaton has 26464 states and 45311 transitions. Word has length 142 [2024-10-24 00:53:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:23,399 INFO L471 AbstractCegarLoop]: Abstraction has 26464 states and 45311 transitions. [2024-10-24 00:53:23,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 26464 states and 45311 transitions. [2024-10-24 00:53:23,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 00:53:23,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:23,449 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:23,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:53:23,449 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:23,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:23,450 INFO L85 PathProgramCache]: Analyzing trace with hash 806258647, now seen corresponding path program 1 times [2024-10-24 00:53:23,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:23,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039076976] [2024-10-24 00:53:23,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:23,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:53:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:53:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:53:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:53:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:53:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:53:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:53:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 00:53:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 00:53:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 00:53:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:23,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:23,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039076976] [2024-10-24 00:53:23,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039076976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:23,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:23,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:23,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776613085] [2024-10-24 00:53:23,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:23,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:23,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:23,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:23,580 INFO L87 Difference]: Start difference. First operand 26464 states and 45311 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:25,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:25,393 INFO L93 Difference]: Finished difference Result 72027 states and 125541 transitions. [2024-10-24 00:53:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2024-10-24 00:53:25,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:25,560 INFO L225 Difference]: With dead ends: 72027 [2024-10-24 00:53:25,560 INFO L226 Difference]: Without dead ends: 48295 [2024-10-24 00:53:25,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:25,616 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 816 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:25,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 577 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 00:53:25,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48295 states. [2024-10-24 00:53:27,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48295 to 48224. [2024-10-24 00:53:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48224 states, 39670 states have (on average 1.616486009579027) internal successors, (64126), 39677 states have internal predecessors, (64126), 8527 states have call successors, (8527), 22 states have call predecessors, (8527), 26 states have return successors, (9672), 8526 states have call predecessors, (9672), 8526 states have call successors, (9672) [2024-10-24 00:53:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48224 states to 48224 states and 82325 transitions. [2024-10-24 00:53:27,434 INFO L78 Accepts]: Start accepts. Automaton has 48224 states and 82325 transitions. Word has length 143 [2024-10-24 00:53:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:27,435 INFO L471 AbstractCegarLoop]: Abstraction has 48224 states and 82325 transitions. [2024-10-24 00:53:27,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 48224 states and 82325 transitions. [2024-10-24 00:53:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 00:53:27,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:27,506 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:27,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:53:27,506 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:27,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2050159065, now seen corresponding path program 1 times [2024-10-24 00:53:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:27,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982974789] [2024-10-24 00:53:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:27,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:53:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:53:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:53:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:53:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:53:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:53:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:53:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 00:53:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 00:53:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 00:53:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:53:27,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982974789] [2024-10-24 00:53:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982974789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:53:27,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:53:27,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 00:53:27,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968838652] [2024-10-24 00:53:27,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:53:27,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 00:53:27,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 00:53:27,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 00:53:27,608 INFO L87 Difference]: Start difference. First operand 48224 states and 82325 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:30,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:30,102 INFO L93 Difference]: Finished difference Result 89746 states and 156905 transitions. [2024-10-24 00:53:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 00:53:30,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2024-10-24 00:53:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:53:30,457 INFO L225 Difference]: With dead ends: 89746 [2024-10-24 00:53:30,457 INFO L226 Difference]: Without dead ends: 89583 [2024-10-24 00:53:30,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:53:30,498 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 811 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:53:30,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 583 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:53:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89583 states. [2024-10-24 00:53:32,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89583 to 89512. [2024-10-24 00:53:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89512 states, 74159 states have (on average 1.609460753246403) internal successors, (119356), 74166 states have internal predecessors, (119356), 15326 states have call successors, (15326), 22 states have call predecessors, (15326), 26 states have return successors, (17517), 15325 states have call predecessors, (17517), 15325 states have call successors, (17517) [2024-10-24 00:53:33,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89512 states to 89512 states and 152199 transitions. [2024-10-24 00:53:33,686 INFO L78 Accepts]: Start accepts. Automaton has 89512 states and 152199 transitions. Word has length 144 [2024-10-24 00:53:33,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:53:33,687 INFO L471 AbstractCegarLoop]: Abstraction has 89512 states and 152199 transitions. [2024-10-24 00:53:33,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 00:53:33,687 INFO L276 IsEmpty]: Start isEmpty. Operand 89512 states and 152199 transitions. [2024-10-24 00:53:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 00:53:33,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:53:33,808 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:53:33,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:53:33,808 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:53:33,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:53:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash -450141290, now seen corresponding path program 1 times [2024-10-24 00:53:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:53:33,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273806615] [2024-10-24 00:53:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:33,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:53:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:53:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:53:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:53:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:53:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:53:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:53:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:53:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:53:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:53:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:53:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:53:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:53:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:53:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 00:53:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 00:53:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 00:53:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:53:34,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:53:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273806615] [2024-10-24 00:53:34,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273806615] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:53:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599755748] [2024-10-24 00:53:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:53:34,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:53:34,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:53:34,226 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) [2024-10-24 00:53:34,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 00:53:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:53:34,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 00:53:34,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:53:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 00:53:34,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:53:35,114 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:53:35,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599755748] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:53:35,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:53:35,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 30 [2024-10-24 00:53:35,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422046156] [2024-10-24 00:53:35,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:53:35,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-24 00:53:35,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:53:35,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-24 00:53:35,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2024-10-24 00:53:35,116 INFO L87 Difference]: Start difference. First operand 89512 states and 152199 transitions. Second operand has 30 states, 29 states have (on average 8.03448275862069) internal successors, (233), 23 states have internal predecessors, (233), 9 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2024-10-24 00:53:57,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:53:57,651 INFO L93 Difference]: Finished difference Result 535140 states and 959054 transitions. [2024-10-24 00:53:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-10-24 00:53:57,651 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 8.03448275862069) internal successors, (233), 23 states have internal predecessors, (233), 9 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) Word has length 145 [2024-10-24 00:53:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:54:00,541 INFO L225 Difference]: With dead ends: 535140 [2024-10-24 00:54:00,541 INFO L226 Difference]: Without dead ends: 534982 [2024-10-24 00:54:00,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5544 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2432, Invalid=14860, Unknown=0, NotChecked=0, Total=17292 [2024-10-24 00:54:00,752 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 5735 mSDsluCounter, 8777 mSDsCounter, 0 mSdLazyCounter, 20467 mSolverCounterSat, 1820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5771 SdHoareTripleChecker+Valid, 9312 SdHoareTripleChecker+Invalid, 22287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1820 IncrementalHoareTripleChecker+Valid, 20467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:54:00,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5771 Valid, 9312 Invalid, 22287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1820 Valid, 20467 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-10-24 00:54:01,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534982 states.